March 2017 - ffmpeg-user - lists.ffmpeg.org

Recording audio from mic and speakers from commandline
by Mohan G 28 Sep '21

28 Sep '21

Hi, I am using ffmpeg version 2.4.7 on Fedora-21 workstation. I want to record audio, simultaneously from mic and speakers as separate streams. I am using the following command for it. ffmpeg -f alsa -i pulse -f alsa -i default -acodec libmp3lame -map 0:0 -map 1:0 outfile.mkv But after executing this command in terminal, I have to goto "Volume Control" settings in GUI, then goto "Recording" tab, change the "capture from" of one channel to "Built-in Audio Analog Stereo" (i.e., Mic) and the "capture from" of another channel to "Monitor of Built-in Audio Analog Stereo" (i.e., Speakers). But how can this be done completely from command-line, for automating it to use in scripts. - Mohan

3 10

FFserver doesn't work with HLS
by SD76 11 Jul '18

11 Jul '18

Hi, I try since a few days to stream a live with ffserver and HLS. My ffserver.conf run with ffserver -f ffserver.conf -d --------------- HTTPPort 8081 MaxClients 10 MaxBandwidth 5000000 <Feed plop.ffm> File /tmp/plop.ffm FileMaxSize 100M </Feed> <Stream s> Format status </Stream> <Stream plop.m3u8> Feed plop.ffm Format HLS VideoCodec libx264 VideoFrameRate 30 VideoBitRate 128 VideoSize 704*480 #AVOptionVideo hls_time 10 #AVOptionVideo hls_list_size 0 AVOptionVideo flags +global_header NoAudio </Stream> --------------- If i enable AVOptionVideo hls_time 10 and AVOptionVideo hls_list_size 0 ffserver say : Option not found: 'hls_time' Option not found: 'hls_list_size' I launch for send stream this command : ffmpeg -r 25 -s 640x480 -f video4linux2 -i /dev/video0 -hls_time 10 -hls_list_size 6 -hls_wrap 10 -start_number 1 http://192.168.0.16:8081/plop.ffm I use a remote player on my galaxy tab: <video controls width="480" height="270" src=" http://192.168.0.16:8081/plop.m3u8"> The stream doesn't work and ffserver say: Sun Nov 29 18:15:15 2015 [hls @ 0x1a20810]failed to rename file .tmp to Do HLS works with ffserver ? How ? I use ffserver version 2.8.1-1~bpo8+1 and ffmpeg version 2.8.1-1~bpo8+ on debian 8. Regard, Ben

2 2

Low latency H.264 streaming with ffmpeg
by Greger Burman 27 Mar '18

27 Mar '18

I would like to hear from anyone who has experience with low latency video streaming and ffmpeg. In my application I take video from a PCIe capture device and stream live over network. The end to end latency must be below 200ms otherwise it is not usable. Let us assume that the network latency is near zero. This question is about encoder+decoder+buffering latency. Very low latency can be achieved when using the x264 encoder by using settings like tune zerolatency. From my own testing with x264 (without ffmpeg) I can confirm that this works. I have measured approx 90 ms (3 frames) of latency added by encoder+decoder combined. Awesome. Sadly I have been unable to get anywhere near those numbers when using ffmpeg and libx264. As player I use either ffplay or a dot-net player built on the ffmpeg libraries, with about equal results. The lowest end to end latency I have seen is 400-500ms. That includes capture latency also. Yes, there are many unknowns here. To help pin point the problem I used mjpeg streaming for comparison. Same everything except I change ffmpeg vcodec to mjpeg and format to mjpeg. I change nothing with ffplay. With mjpeg I now get approx 150ms end to end latency. Observation: x264 codec + mpegts format compared to mjpeg codec + mjpeg format adds about 300 ms (10 frames) latency. I have tried every ffplay-, ffmpeg- and libx264 setting that I believe relevant. Most have not made any noticable difference in latency. I will not list a lot of settings here. Here are the basic settings and commands that I have used. I can post more details on request. x264-preset: vcodec=libx264 thread_type=slice slices=1 # x264 profile=baseline level=32 preset=superfast tune=zerolatency intra-refresh=1 crf=15 x264-params=vbv-maxrate=5000:vbv-bufsize=1:slice-max-size=1500:keyint=60 $ ffmpeg -r 30 -f dshow -i video="devicename" -pix_fmt yuv420p -an -vpre x264-preset -f mpegts udp://127.0.0.1:8888 $ ffplay -fflags nobuffer -flags low_delay -framedrop -strict experimental udp://127.0.0.1:8888 Everything is run on Windows 7 64-bit, with 32-bit executables. ffmpeg version N-76539-g480bad7 Copyright (c) 2000-2015 the FFmpeg developers built with gcc 5.2.0 (GCC) configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib libavutil 55. 5.100 / 55. 5.100 libavcodec 57. 15.100 / 57. 15.100 libavformat 57. 14.100 / 57. 14.100 libavdevice 57. 0.100 / 57. 0.100 libavfilter 6. 15.100 / 6. 15.100 libswscale 4. 0.100 / 4. 0.100 libswresample 2. 0.101 / 2. 0.101 libpostproc 54. 0.100 / 54. 0.100 cheers -- Greger Burman

4 6

Failed to resolve hostname: Ubuntu static builds
by hdn8 03 Mar '18

03 Mar '18

Using the binaries from http://johnvansickle.com/ I get an error when using a http input, "failed to resolve hostname": (using ffprobe, but also with ffmpeg): ffprobe version N-41351-g676110e- http://johnvansickle.com/ffmpeg/ Copyright (c) 2007-2014 the FFmpeg developers built on Oct 15 2014 01:22:19 with gcc 4.8 (Debian 4.8.3-11) configuration: --enable-gpl --enable-version3 --disable-shared --disable-debug --enable-runtime-cpudetect --enable-libmp3lame --enable-libx264 --enable-libx265 --enable-libwebp --enable-libspeex --enable-libvorbis --enable-libvpx --enable-libfreetype --enable-fontconfig --enable-libxvid --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-gray --enable-libopenjpeg --enable-libopus --disable-ffserver --enable-libass --enable-gnutls --cc=gcc-4.8 libavutil 54. 10.100 / 54. 10.100 libavcodec 56. 5.100 / 56. 5.100 libavformat 56. 9.100 / 56. 9.100 libavdevice 56. 1.100 / 56. 1.100 libavfilter 5. 1.106 / 5. 1.106 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 1.100 / 1. 1.100 libpostproc 53. 3.100 / 53. 3.100 [tcp @ 0x3f82100] Failed to resolve hostname mirrorblender.top-ix.org: Name or service not known http://mirrorblender.top-ix.org/peach/bigbuckbunny_movies/big_buck_bunny_48…: Input/output error Note I have tried with various http sources/hosts, all same result. Using the builds from ffmpeg.gusari.org it works fine: ffprobe version N-63893-gc69defd Copyright (c) 2007-2014 the FFmpeg developers built on Jul 16 2014 05:38:01 with gcc 4.6 (Debian 4.6.3-1) configuration: --prefix=/root/ffmpeg-static/64bit --extra-cflags='-I/root/ffmpeg-static/64bit/include -static' --extra-ldflags='-L/root/ffmpeg-static/64bit/lib -static' --extra-libs='-lxml2 -lexpat -lfreetype' --enable-static --disable-shared --disable-ffserver --disable-doc --enable-bzlib --enable-zlib --enable-postproc --enable-runtime-cpudetect --enable-libx264 --enable-gpl --enable-libtheora --enable-libvorbis --enable-libmp3lame --enable-gray --enable-libass --enable-libfreetype --enable-libopenjpeg --enable-libspeex --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-version3 --enable-libvpx libavutil 52. 89.100 / 52. 89.100 libavcodec 55. 66.101 / 55. 66.101 libavformat 55. 43.100 / 55. 43.100 libavdevice 55. 13.101 / 55. 13.101 libavfilter 4. 8.100 / 4. 8.100 libswscale 2. 6.100 / 2. 6.100 libswresample 0. 19.100 / 0. 19.100 libpostproc 52. 3.100 / 52. 3.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'http://mirrorblender.top-ix.org/peach/bigbuckbunny_movies/big_buck_bunny_48…': Metadata: major_brand : qt minor_version : 537199360 compatible_brands: qt creation_time : 2008-05-27 18:32:32 timecode : 00:00:00:00 Duration: 00:09:56.46, start: 0.000000, bitrate: 3342 kb/s Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 854x480, 2899 kb/s, 24 fps, 24 tbr, 2400 tbn, 4800 tbc (default) Metadata: creation_time : 2008-05-27 18:32:32 handler_name : Apple Alias Data Handler encoder : H.264 Stream #0:1(eng): Data: none (tmcd / 0x64636D74) (default) Metadata: creation_time : 2008-05-27 18:32:32 handler_name : Apple Alias Data Handler timecode : 00:00:00:00 Stream #0:2(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, 5.1, fltp, 437 kb/s (default) Metadata: creation_time : 2008-05-27 18:32:32 handler_name : Apple Alias Data Handler The error from http://johnvansickle.com/ffmpeg/ is the same for the nightly and version 2.4. The gusari.org binaries havent been built since July 16, for now I am using ffprobe from gusari for http sources and for file sources johnvansickle. From where are you getting your (supposedly stable) binaries? Ubuntu x86_64 GNU/Linux -- View this message in context: http://ffmpeg-users.933282.n4.nabble.com/Failed-to-resolve-hostname-Ubuntu-… Sent from the FFmpeg-users mailing list archive at Nabble.com.

3 3

FFmpeg mosaic
by alexdjca 15 Jan '18

15 Jan '18

Hi All, following this help Create Mosaic with FFMPEG <https://trac.ffmpeg.org/wiki/Create%20a%20mosaic%20out%20of%20several%20inp…> i've created a nice mosaic i run to keep a constant eye on a lot of different live streams I've published in my network, and the presence of audio in each of them. The final code i've built is the following: ffmpeg -probesize 1M \ -i udp://239.98.181.1:6000?fifo_size=100000?overrun_nonfatal=1 \ -i udp://239.98.181.2:6000?fifo_size=100000?overrun_nonfatal=1 \ -i udp://239.98.181.3:6000?fifo_size=100000?overrun_nonfatal=1 \ -i udp://239.98.181.4:6000?fifo_size=100000?overrun_nonfatal=1 \ -i udp://239.98.181.6:6000?fifo_size=100000?overrun_nonfatal=1 \ -i udp://239.98.181.7:6000?fifo_size=100000?overrun_nonfatal=1 \ -i udp://239.98.181.3:6000?fifo_size=100000?overrun_nonfatal=1 \ -i udp://239.98.181.2:6000?fifo_size=100000?overrun_nonfatal=1 \ -i udp://239.98.181.4:6000?fifo_size=100000?overrun_nonfatal=1 \ -i udp://239.98.181.1:6000?fifo_size=100000?overrun_nonfatal=1 \ -i udp://239.98.181.7:6000?fifo_size=100000?overrun_nonfatal=1 \ -i udp://239.98.181.2:6000?fifo_size=100000?overrun_nonfatal=1 \ -filter_complex "color=c=black:size=1280x720 [base];\ [0:v] setpts=PTS-STARTPTS, scale=224x192, drawtext=text='TESTO1'[r1p1];\ [0:a] showvolume=b=1:h=10:w=200:o=v [r1p1a];\ [1:v] setpts=PTS-STARTPTS, scale=224x192 [r1p2];\ [1:a] showvolume=b=1:h=10:w=200:o=v [r1p2a];\ [2:v] setpts=PTS-STARTPTS, scale=224x192 [r1p3];\ [2:a] showvolume=b=1:h=10:w=200:o=v [r1p3a];\ [3:v] setpts=PTS-STARTPTS, scale=224x192 [r1p4];\ [3:a] showvolume=b=1:h=10:w=200:o=v [r1p4a];\ [4:v] setpts=PTS-STARTPTS, scale=224x192 [r2p1];\ [4:a] showvolume=b=1:h=10:w=200:o=v [r2p1a];\ [5:v] setpts=PTS-STARTPTS, scale=224x192 [r2p2];\ [5:a] showvolume=b=1:h=10:w=200:o=v [r2p2a];\ [6:v] setpts=PTS-STARTPTS, scale=224x192 [r2p3];\ [6:a] showvolume=b=1:h=10:w=200:o=v [r2p3a];\ [7:v] setpts=PTS-STARTPTS, scale=224x192 [r2p4];\ [7:a] showvolume=b=1:h=10:w=200:o=v [r2p4a];\ [8:v] setpts=PTS-STARTPTS, scale=224x192 [r3p1];\ [8:a] showvolume=b=1:h=10:w=200:o=v [r3p1a];\ [9:v] setpts=PTS-STARTPTS, scale=224x192 [r3p2];\ [9:a] showvolume=b=1:h=10:w=200:o=v [r3p2a];\ [10:v] setpts=PTS-STARTPTS, scale=224x192 [r3p3];\ [10:a] showvolume=b=1:h=10:w=200:o=v [r3p3a];\ [11:v] setpts=PTS-STARTPTS, scale=224x192 [r3p4];\ [11:a] showvolume=b=1:h=10:w=200:o=v [r3p4a];\ [base][r1p1] overlay=shortest=0:x=50:y=10 [stop1]; [stop1][r1p1a] overlay=shortest=0:x=0:y=0 [tmp1];\ [tmp1][r1p2] overlay=shortest=0:x=370:y=10 [stop2]; [stop2][r1p2a] overlay=shortest=0:x=320:y=0 [tmp2];\ [tmp2][r1p3] overlay=shortest=0:x=690:y=10 [stop3]; [stop3][r1p3a] overlay=shortest=0:x=640:y=0 [tmp3];\ [tmp3][r1p4] overlay=shortest=0:x=1010:y=10 [stop4]; [stop4][r1p4a] overlay=shortest=0:x=960:y=0 [tmp4];\ [tmp4][r2p1] overlay=shortest=0:x=50:y=250 [stop5]; [stop5][r2p1a] overlay=shortest=0:x=0:y=240 [tmp5]; \ [tmp5][r2p2] overlay=shortest=0:x=370:y=250 [stop6]; [stop6][r2p2a] overlay=shortest=0:x=320:y=240 [tmp6]; \ [tmp6][r2p3] overlay=shortest=0:x=690:y=250 [stop7]; [stop7][r2p3a] overlay=shortest=0:x=640:y=240 [tmp7]; \ [tmp7][r2p4] overlay=shortest=0:x=1010:y=250 [stop8]; [stop8][r2p4a] overlay=shortest=0:x=960:y=240 [tmp8]; \ [tmp8][r3p1] overlay=shortest=0:x=50:y=490 [stop9]; [stop9][r3p1a] overlay=shortest=0:x=0:y=480 [tmp9]; \ [tmp9][r3p2] overlay=shortest=0:x=370:y=490 [stop10]; [stop10][r3p2a] overlay=shortest=0:x=320:y=480 [tmp10]; \ [tmp10][r3p3] overlay=shortest=0:x=690:y=490 [stop11]; [stop11][r3p3a] overlay=shortest=0:x=640:y=480 [tmp11]; \ [tmp11][r3p4] overlay=shortest=0:x=1010:y=490 [stop12]; [stop12][r3p4a] overlay=shortest=0:x=960:y=480" \ -c:v mpeg2video -b:v 4M -minrate 4M -maxrate 4M -map 0 -map 1 -map 2 -map 3 -map 4 -map 5 -map 6 -map 7 -map 8 -map 9 -map 10 -map 11 -f mpegts udp://239.98.181.20:6000 The result is quite good but there is a major issue i cannot figure out how to fix. Basically until all the streams are running fine the mosaic is perfect, but as soon as one of the input is missing all the mosaic stops and there is no way to let it start again. Another issue (minor actually) is that ffmpeg, before to compose the mosaic, needs to analyze all the streams so it takes a lot to start. Can anybody help me to find a solution please? Thanks in advance. Alex -- View this message in context: http://ffmpeg-users.933282.n4.nabble.com/FFmpeg-mosaic-tp4679120.html Sent from the FFmpeg-users mailing list archive at Nabble.com.

2 1

Adding user-defined SEI messages thru libavcodec/libx264
by SF 06 Jan '18

06 Jan '18

Hi, I am searching a way to insert private SEI messages before each picture when encoding with x264. As far as i see from the libx264.c code, it is not supported up to now. Am i correct ? If yes, i am willing to push patch to support this, but do you have a preferred way to do this (ie thru medata field of AVFrame ? thru sidedata of AVFrame ? ...) Thanks for your hints, Regards, SF

2 1

QSV Hevc to HLS not segmenting?
by Markku Vainio 31 Oct '17

31 Oct '17

Hello, Encoding with hevc_qsv results only one large 00000.ts. It seems to me that ffmpeg is unable to split QSV encoded HEVC stream. (Intel Core i7-6770HQ, Iris Pro 580, W10) ffmpeg -y -i alasin.mp4 -vf yadif=0 -c:v hevc_qsv -load_plugin hevc_hw -g 25 -q 20 -preset slow -pix_fmt nv12 -c:a aac -ac 2 -hls_time 2 -hls_wrap 10000 -hls_segment_filename "%%05d.ts" index.m3u8 With libx265 splitting works fine. I also successfully tested h264_qsv. ffmpeg -y -i masteri.mov -vf yadif=0 -c:v libx265 -g 25 -q 20 -preset slow -c:a aac -ac 2 -hls_time 2 -hls_wrap 10000 -hls_segment_filename "%%05d.ts" index.m3u8 Am I doing something wrong here or is the HEVC stream coming from QSV missing some information that is needed for splitting at GOP boundary? C:\!!>ffmpeg -y -i alasin.mp4 -vf yadif=0 -c:v hevc_qsv -load_plugin hevc_hw -g 25 -q 20 -preset slow -pix_fmt nv12 -c:a aac -ac 2 -hls_time 2 -hls_wrap 10000 -hls_segment_filename "%05d.ts" index.m3u8 -loglevel verbose ffmpeg version N-83410-gb1e2192 Copyright (c) 2000-2017 the FFmpeg developers built with gcc 5.4.0 (GCC) configuration: --enable-gpl --enable-version3 --enable-cuda --enable-cuvid --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib libavutil 55. 46.100 / 55. 46.100 libavcodec 57. 75.100 / 57. 75.100 libavformat 57. 66.101 / 57. 66.101 libavdevice 57. 2.100 / 57. 2.100 libavfilter 6. 72.100 / 6. 72.100 libswscale 4. 3.101 / 4. 3.101 libswresample 2. 4.100 / 2. 4.100 libpostproc 54. 2.100 / 54. 2.100 [h264 @ 0000000000dd46e0] Reinit context to 3840x2176, pix_fmt: yuv420p Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'alasin.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 encoder : Lavf57.58.102 Duration: 00:02:15.06, start: 0.000000, bitrate: 89980 kb/s Stream #0:0(und): Video: h264 (High), 1 reference frame (avc1 / 0x31637661), yuv420p(left), 3840x2160 (3840x2176) [SAR 1:1 DAR 16:9], 89529 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default) Metadata: handler_name : VideoHandler timecode : 00:00:00:00 Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 460 kb/s (default) Metadata: handler_name : SoundHandler Stream #0:2(eng): Data: none (tmcd / 0x64636D74) Metadata: handler_name : TimeCodeHandler timecode : 00:00:00:00 [graph 0 input from stream 0:0 @ 0000000000e0f080] w:3840 h:2160 pixfmt:yuv420p tb:1/12800 fr:25/1 sar:1/1 sws_param:flags=2 [auto_scaler_0 @ 0000000000e5c4e0] w:iw h:ih flags:'bicubic' interl:0 [format @ 0000000000e0f600] auto-inserting filter 'auto_scaler_0' between the filter 'Parsed_yadif_0' and the filter 'format' [auto_scaler_0 @ 0000000000e5c4e0] w:3840 h:2160 fmt:yuv420p sar:1/1 -> w:3840 h:2160 fmt:nv12 sar:1/1 flags:0x4 [hevc_qsv @ 0000000000ea7be0] Initialized an internal MFX session using hardware accelerated implementation [hevc_qsv @ 0000000000ea7be0] Using the constant quantization parameter (CQP) ratecontrol method [hevc_qsv @ 0000000000ea7be0] profile: simple; level: 306 [hevc_qsv @ 0000000000ea7be0] GopPicSize: 25; GopRefDist: 9; GopOptFlag: closed ; IdrInterval: 0 [hevc_qsv @ 0000000000ea7be0] TargetUsage: 4; RateControlMethod: CQP [hevc_qsv @ 0000000000ea7be0] QPI: 16; QPP: 20; QPB: 26 [hevc_qsv @ 0000000000ea7be0] NumSlice: 1; NumRefFrame: 5 [hevc_qsv @ 0000000000ea7be0] RateDistortionOpt: unknown [hevc_qsv @ 0000000000ea7be0] RecoveryPointSEI: unknown IntRefType: 0; IntRefCycleSize: 0; IntRefQPDelta: 0 [hevc_qsv @ 0000000000ea7be0] MaxFrameSize: 0; MaxSliceSize: 0; [hevc_qsv @ 0000000000ea7be0] BitrateLimit: unknown; MBBRC: OFF; ExtBRC: unknown [hevc_qsv @ 0000000000ea7be0] Trellis: auto [hevc_qsv @ 0000000000ea7be0] RepeatPPS: OFF; NumMbPerSlice: 0; LookAheadDS: unknown [hevc_qsv @ 0000000000ea7be0] AdaptiveI: unknown; AdaptiveB: unknown; BRefType: pyramid [hevc_qsv @ 0000000000ea7be0] MinQPI: 0; MaxQPI: 0; MinQPP: 0; MaxQPP: 0; MinQPB: 0; MaxQPB: 0 [graph_1_in_0_1 @ 0000000000e5c5a0] tb:1/48000 samplefmt:fltp samplerate:48000 chlayout:0x3 [mpegts @ 0000000002a294e0] muxrate VBR, pcr every 2 pkts, sdt every 2147483647, pat/pmt every 2147483647 pkts Output #0, hls, to 'index.m3u8': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 encoder : Lavf57.66.101 Stream #0:0(und): Video: hevc (hevc_qsv), 1 reference frame, nv12(left), 3840x2160 [SAR 1:1 DAR 16:9], q=2-31, 1000 kb/s, 25 fps, 90k tbn, 25 tbc (default) Metadata: handler_name : VideoHandler timecode : 00:00:00:00 encoder : Lavc57.75.100 hevc_qsv Side data: cpb: bitrate max/min/avg: 0/0/1000000 buffer size: 0 vbv_delay: -1 Stream #0:1(und): Audio: aac (LC), 48000 Hz, stereo, fltp, delay 1024, 128 kb/s (default) Metadata: handler_name : SoundHandler encoder : Lavc57.75.100 aac Stream mapping: Stream #0:0 -> #0:0 (h264 (native) -> hevc (hevc_qsv)) Stream #0:1 -> #0:1 (aac (native) -> aac (native)) Press [q] to stop, [?] for help [h264 @ 0000000000eaa8e0] Reinit context to 3840x2176, pix_fmt: yuv420p frame= 846 fps= 35 q=-0.0 size=N/A time=00:00:34.15 bitrate=N/A speed=1.43x

3 17

Syncing clips based on audio waveform?
by Arthur Wait 05 Oct '17

05 Oct '17

Hi all, This is coming from out of left field I imagine, but I'm wondering if anyone knows of a filter (or chain of filters) which would allow me to align/sync two video clips based on matches in their audio waveforms. I'm shooting events with multiple cameras and would like to either trim the clips to a precise, matching starting frame or generate a metadata "offset" marker indicating how far off one clip is from the other in time. Then I can trim the clips to match. Is this possible in ffmpeg (or anywhere else for that matter!)? Thanks very much! Art

7 7

could not find codec parameters for stream 0 unspecified size
by Ashish Lal 09 Aug '17

09 Aug '17

I am trying to convert a live rtsp stream (H264 + MPEG2 TS ) into MP4 using ffmpeg. I am getting an error "could not find codec parameters for stream 0 unspecified size". Any help in fixing this is appreciated. ffmpeg -rtsp_transport tcp -i rtsp://AA.BB.CC.DD:5555/mpeg2TransportStreamFr omUDPSourceTest -analyzeduration 999999999 -probesize 99999999 -vcodec libx264 -s 176x144 -b:v 256k -f mp4 -movflags frag_keyframe+empty_moov op.mp4 ffmpeg version 2.2.2 Copyright (c) 2000-2014 the FFmpeg developers built on May 27 2014 09:12:51 with gcc 4.7 (Debian 4.7.2-5) configuration: --enable-libx264 --enable-encoder=libx264 --enable-libvpx --pre fix=/home/ashish/ffmpeg-2.2.2/mybuild --enable-gpl --enable-debug --disable-stri pping --disable-optimizations --enable-memalign-hack libavutil 52. 66.100 / 52. 66.100 libavcodec 55. 52.102 / 55. 52.102 libavformat 55. 33.100 / 55. 33.100 libavdevice 55. 10.100 / 55. 10.100 libavfilter 4. 2.100 / 4. 2.100 libswscale 2. 5.102 / 2. 5.102 libswresample 0. 18.100 / 0. 18.100 libpostproc 52. 3.100 / 52. 3.100 [NULL @ 0x235cd60] non-existing PPS 0 referenced [h264 @ 0x235cd60] non-existing PPS 0 referenced [h264 @ 0x235cd60] decode_slice_header error [h264 @ 0x235cd60] no frame! [h264 @ 0x235cd60] non-existing PPS 0 referenced ......... ......... Last message repeated 1 times [h264 @ 0x235cd60] decode_slice_header error [h264 @ 0x235cd60] no frame! [h264 @ 0x235cd60] non-existing PPS 0 referenced [rtsp @ 0x232fc40] decoding for stream 0 failed [rtsp @ 0x232fc40] Could not find codec parameters for stream 0 (Video: h264 ([2 7][0][0][0] / 0x001B)): unspecified size Consider increasing the value for the 'analyzeduration' and 'probesize' options rtsp://AA.BB.CC.DD:5555/mpeg2TransportStreamFromUDPSourceTest: could not find codec parameters Conversion failed! Regards Ashish

3 3

Converting a cassette audio tape (Lecture) to mp3
by jd1008 14 Jul '17

14 Jul '17

Hi all, I am running fedora 20 with ffmpeg version N-51556-ge278500 Copyright (c) 2000-2013 the FFmpeg developers I also installed in /opt ffmpeg version N-72985-g7c3f7e6 Copyright (c) 2000-2015 the FFmpeg developers I need a set of steps/commands to convert this tape. I have plenty of audio tools installed - but not certain what else I might need. If anyone has done this before, please share your script. Kind regards, JD

6 15

Compiling FFMPEG with ffplay support
by Stas Oskin 14 Jun '17

14 Jun '17

Hi. Did the compilation parameters changed in recent FFMPEG version? Configuring the FFMPEG like this: ./configure --prefix=/usr --enable-pthreads Does not produce ffplay anymore. I tried to add --enable-ffplay, without any result. Any idea what I'm missing? Thanks.

6 9

Create thumbnails from RTMP stream
by Grant Curtis 09 Jun '17

09 Jun '17

If I use Flash Media Live Encoder to send a stream to an RTMP server, and then, on that server, run the below command, I can create thumbnails from the stream. But when I try to do the same when I stream the file to the server using ffmpeg, I get errors, and no thumbnails are created Server command and output: $ /usr/bin/ffmpeg -report -i "rtmp://localhost:1935/osc-live-packager/cumin?offsetFromLive=10,userID=testUser1/mp4:rebroadcast_testUser1" -y -r 29.97 -threads 4 -c:v copy -c:a copy /mnt_ephemeral1/media/cumin/cumin_1000.mp4 -filter:v "scale=w=178:h=100" -f image2 -vf "fps=fps=1/5" "/mnt_ephemeral1/media/cumin/cumin/thumbs/thumb_%04d.png" ffmpeg started on 2016-04-25 at 18:28:39 Report written to "/var/log/ffmpeg/ffmpeg-20160425-182839.log" ffmpeg version 2.7.2-static http://johnvansickle.com/ffmpeg/ Copyright (c) 2000-2015 the FFmpeg developers built with gcc 4.9.3 (Debian 4.9.3-1) configuration: --enable-gpl --enable-version3 --disable-shared --disable-debug --enable-runtime-cpudetect --enable-libmp3lame --enable-libx264 --enable-libx265 --enable-libwebp --enable-libspeex --enable-libvorbis --enable-libvpx --enable-libfreetype --enable-fontconfig --enable-libxvid --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-gray --enable-libopenjpeg --enable-libopus --enable-libass --enable-gnutls --enable-libvidstab --enable-libsoxr --cc=gcc-4.9 libavutil 54. 27.100 / 54. 27.100 libavcodec 56. 41.100 / 56. 41.100 libavformat 56. 36.100 / 56. 36.100 libavdevice 56. 4.100 / 56. 4.100 libavfilter 5. 16.101 / 5. 16.101 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 2.100 / 1. 2.100 libpostproc 53. 3.100 / 53. 3.100 [NULL @ 0x31b65e0] missing picture in access unit with size 110664 [h264 @ 0x31b65e0] no frame! [h264 @ 0x31b65e0] missing picture in access unit with size 2338 [h264 @ 0x31b65e0] no frame! [h264 @ 0x31b65e0] missing picture in access unit with size 2645 [h264 @ 0x31b65e0] no frame! [h264 @ 0x31b65e0] missing picture in access unit with size 2600 [h264 @ 0x31b65e0] no frame! [h264 @ 0x31b65e0] missing picture in access unit with size 8421 [h264 @ 0x31b65e0] no frame! [h264 @ 0x31b65e0] missing picture in access unit with size 2895 [h264 @ 0x31b65e0] no frame! [h264 @ 0x31b65e0] missing picture in access unit with size 1759 [h264 @ 0x31b65e0] no frame! [h264 @ 0x31b65e0] missing picture in access unit with size 776 [h264 @ 0x31b65e0] no frame! [h264 @ 0x31b65e0] missing picture in access unit with size 13391 [h264 @ 0x31b65e0] no frame! -truncated a bunch more similar messages- [flv @ 0x31b3c00] decoding for stream 0 failed [flv @ 0x31b3c00] Could not find codec parameters for stream 0 (Video: h264, none): unspecified size Consider increasing the value for the 'analyzeduration' and 'probesize' options Input #0, flv, from 'rtmp://localhost:1935/osc-live-packager/cumin?offsetFromLive=10,userID=testUser1/mp4:rebroadcast_testUser1': Metadata: moovPosition : 36 avcprofile : 100 avclevel : 31 videoframerate : 25 audiochannels : 2 timescale : 1000 length : 839 sampletype : .mp3 Duration: 00:00:00.84, start: 0.040000, bitrate: N/A Stream #0:0: Video: h264, none, 25 tbr, 1k tbn, 2k tbc Stream #0:1: Subtitle: text Stream #0:2: Audio: mp3, 44100 Hz, stereo, s16p, 128 kb/s Output #1, image2, to '/mnt_ephemeral1/media/cumin/cumin/thumbs/thumb_%04d.png': Metadata: moovPosition : 36 avcprofile : 100 avclevel : 31 videoframerate : 25 audiochannels : 2 timescale : 1000 length : 839 sampletype : .mp3 Output file #1 does not contain any stream Received signal 2: terminating. --- Here's how I start the stream from my local machine: --- ffmpeg -re -i testVideo.mp4 -ar 44100 -c:v libx264 -f flv rtmp://xxxxxxxx:1935/xxxxx/xxxxx/xxxxx_1000.mp4 ffmpeg version 2.8.4 Copyright (c) 2000-2015 the FFmpeg developers built with gcc 5.2.0 (GCC) configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enable-zlib libavutil 54. 31.100 / 54. 31.100 libavcodec 56. 60.100 / 56. 60.100 libavformat 56. 40.101 / 56. 40.101 libavdevice 56. 4.100 / 56. 4.100 libavfilter 5. 40.101 / 5. 40.101 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 2.101 / 1. 2.101 libpostproc 53. 3.100 / 53. 3.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'testVideo.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 creation_time : 1970-01-01 00:00:00 encoder : Lavf53.24.2 Duration: 00:01:02.32, start: 0.000000, bitrate: 1347 kb/s Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 959 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default) Metadata: creation_time : 1970-01-01 00:00:00 handler_name : VideoHandler Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, 5.1, fltp, 383 kb/s (default) Metadata: creation_time : 1970-01-01 00:00:00 handler_name : SoundHandler [libx264 @ 03052340] using SAR=1/1 [libx264 @ 03052340] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2 [libx264 @ 03052340] profile High, level 3.1 [libx264 @ 03052340] 264 - core 148 r2638 7599210 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00 Output #0, flv, to 'rtmp://xxxxxx:1935/xxxx/xxxxx/xxxxx_1000.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 encoder : Lavf56.40.101 Stream #0:0(und): Video: h264 (libx264) ([7][0][0][0] / 0x0007), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=-1--1, 25 fps, 1k tbn, 25 tbc (default) Metadata: creation_time : 1970-01-01 00:00:00 handler_name : VideoHandler encoder : Lavc56.60.100 libx264 Stream #0:1(und): Audio: mp3 (libmp3lame) ([2][0][0][0] / 0x0002), 44100 Hz, stereo, fltp (default) Metadata: creation_time : 1970-01-01 00:00:00 handler_name : SoundHandler encoder : Lavc56.60.100 libmp3lame Stream mapping: Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264)) Stream #0:1 -> #0:1 (aac (native) -> mp3 (libmp3lame)) Press [q] to stop, [?] for help frame= 1336 fps= 25 q=28.0 size= 7310kB time=00:00:53.63 bitrate=1116.6kbits/s

2 2

Re: [FFmpeg-user] FFMPEG & Panasonic OP-1B MXF decode issue
by Jeff Smith 06 Jun '17

06 Jun '17

> 2017-03-10 9:20 GMT+01:00 <jeff at jksmith.com <http://ffmpeg.org/mailman/listinfo/ffmpeg-user>>: > >/Happy to provide a sample. Is there an FTP site or something I /> >/can upload it to? /> > You can usehttp://streams.videolan.org/upload/ but you absolutely > have to provide the file name, the service is extremely impractical. > > Carl Eugen Hi Carl, I'm assuming from radio silence that you couldn't get the sample I uploaded. I've posted it on an anonymous FTP server here: ftp://5.56.49.144/085FV4BR.MXF . Grateful if you could acknowledge if this works for you. Thanks, Jeff --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

2 1

Float formatting in drawtext
by Wolfgang Hugemann 29 May '17

29 May '17

Hey, seems to be an easy question, but I have been searching for the answer quite a while without success: If I perform a float calculation via text=%{expr\:whatever} is there any way to format the output the printf way? I know, the result could be converted to integer and be formatted via text=%{eif\:whatever\:d} but this is restricted to integer results. Wolfgang Hugemann

2 4

How do I encode DVB Subtitles?
by Wagner Patriota 02 May '17

02 May '17

*QUESTION 1:* How do I add a STR file to a MPEG-TS file with the "DVB subtitle codec"? If so, could you give me a sample command line? Thank. I am trying: ffmpeg -i video.ts *-i subtitle.srt* -vcodec copy -acodec copy *-scodec dvbsub* output.ts The stream is created because I can see it with MediaInfo, but the subtitles don't appear! *QUESTION 2:* How do I use the command *slang*? I try to use it, but ffmpeg says the command doesn't exist. Thank you.

7 15

DVB H264 chunk transcoding => merging in MP4 => out of sync
by ffmpeg＠me.com 10 Apr '17

10 Apr '17

Viewing on VLC works great. Audio/Video perfectly in sync. Viewing in Quicktime (Version 10.4 MacOS sierra, Quicktime 7) the video get's out of sync after 3/4 minutes. Scrubbing in the timeline will fix the problem, then after 3/4 minutes I see the synchronization problem again. Using current FFmpeg version to transcode into H.264 and AAC TS chunks. ffmpeg -i "udp://224.5.2.5:10001?overrun_nonfatal=1&fifo_size=50000000" -map 0:3 -map 0:4 -s 1280x720 -acodec aac -b:a 192k -ac 2 -ar 48000 -vcodec libx264 -preset:v medium -r 50 -g 100 -vb 3200000 -y -fflags +genpts -f segment -segment_time 60 -segment_atclocktime 1 -strftime 1 "/videofiles/TV_HD_%Y-%m-%d_%H-%M-%S.ts Everything works fine... chunks are created. No errors in output. Audio/video TS pieces in sync. #### Details of a chunk file: ffprobe /videofiles/TV_HD_2017-03-13_14-25-00.ts ffprobe version 3.2.4-tessus Copyright (c) 2007-2017 the FFmpeg developers built with Apple LLVM version 8.0.0 (clang-800.0.42.1) configuration: --cc=/usr/bin/clang --prefix=/opt/ffmpeg --extra-version=tessus --enable-avisynth --enable-fontconfig --enable-gpl --enable-libass --enable-libbluray --enable-libfreetype --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopus --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzmq --enable-version3 --disable-ffplay --disable-indev=qtkit --disable-indev=x11grab_xcb libavutil 55. 34.101 / 55. 34.101 libavcodec 57. 64.101 / 57. 64.101 libavformat 57. 56.101 / 57. 56.101 libavdevice 57. 1.100 / 57. 1.100 libavfilter 6. 65.100 / 6. 65.100 libswscale 4. 2.100 / 4. 2.100 libswresample 2. 3.100 / 2. 3.100 libpostproc 54. 1.100 / 54. 1.100 Input #0, mpegts, from '/Users/Andreas/Desktop/TEST/ARD_HD_2017-03-13_14-25-00.ts': Duration: 00:01:00.04, start: 115.402667, bitrate: 3720 kb/s Program 1 Metadata: service_name : Service01 service_provider: FFmpeg Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(progressive), 1280x720 [SAR 1:1 DAR 16:9], 50 fps, 50 tbr, 90k tbn, 100 tbc Stream #0:1[0x101](deu): Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 204 kb/s #### Merging together: ffmpeg -f concat -safe 0 -i files.txt -y -metadata creation_time=now -c:v copy -c:a copy -fflags +genpts -movflags faststart -use_editlist 0 -f mp4 tvexport.mp4 #### and output: ffmpeg version 3.2.4-tessus Copyright (c) 2000-2017 the FFmpeg developers built with Apple LLVM version 8.0.0 (clang-800.0.42.1) configuration: --cc=/usr/bin/clang --prefix=/opt/ffmpeg --extra-version=tessus --enable-avisynth --enable-fontconfig --enable-gpl --enable-libass --enable-libbluray --enable-libfreetype --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopus --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzmq --enable-version3 --disable-ffplay --disable-indev=qtkit --disable-indev=x11grab_xcb libavutil 55. 34.101 / 55. 34.101 libavcodec 57. 64.101 / 57. 64.101 libavformat 57. 56.101 / 57. 56.101 libavdevice 57. 1.100 / 57. 1.100 libavfilter 6. 65.100 / 6. 65.100 libswscale 4. 2.100 / 4. 2.100 libswresample 2. 3.100 / 2. 3.100 libpostproc 54. 1.100 / 54. 1.100 Input #0, concat, from 'files.txt': Duration: N/A, start: 0.000000, bitrate: N/A Stream #0:0: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(progressive), 1280x720 [SAR 1:1 DAR 16:9], 50 fps, 50 tbr, 90k tbn, 100 tbc Stream #0:1(deu): Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 169 kb/s Output #0, mp4, to 'work_tmp0.mp4': Metadata: creation_time : now encoder : Lavf57.56.101 Stream #0:0: Video: h264 (High) ([33][0][0][0] / 0x0021), yuv420p(progressive), 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 50 fps, 50 tbr, 90k tbn, 90k tbc Stream #0:1(deu): Audio: aac (LC) ([64][0][0][0] / 0x0040), 48000 Hz, stereo, 169 kb/s Stream mapping: Stream #0:0 -> #0:0 (copy) Stream #0:1 -> #0:1 (copy) Press [q] to stop, [?] for help [mp4 @ 0x7fff37800600] Starting second pass: moving the moov atom to the beginning of the filex frame=24000 fps=9825 q=-1.0 Lsize= 199633kB time=00:08:00.20 bitrate=3405.6kbits/s speed= 197x video:187817kB audio:11755kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.030912% What could be the problem?

2 7

Can't get a/v synchronisation right with mpeg transport stream that has gaps in it
by Erik Slagter 03 Apr '17

03 Apr '17

Hi people, I'm having this problem for years and years (so it's not a recent problem or regression). I make recordings on my enigma2 based settopbox. It saves the recordings as the original transport stream, but with filtering of only the requested service pids. There is a feature to edit the recorded services, in a basic way. Very helpful to edit out commercials. Problem is that it makes cuts in a very "rude" way, it justs cuts the file at a certain position, in the middle of all kinds of open packets and streams. On playback it isn't such a big deal, because the damaged packets are discarded and the DVB hardware resyncs on the timestamps pretty quickly. After the crude editing, I like to perform a real editing run, using kdenlive (or any other NLVE, for that case). I've found that all of them have problems when fed with a "damaged" transport stream, like this. So what I do, is transcode the stream to something with mjpeg and pcm codecs, intra frames only, very easy on the editor. This is the problem: after every timestamp discontinuity ("cut" or "gap"), ffmpeg resyncs audio and video BUT it doesn't do it 100% correctly. Sound remains a bit "in front" of the video, skewed a bit. Also, it gets worse at every cut, everytime about 200-300 ms is added to the skew. That's not what I'd expect? I've tried these options to force synchronisation: - -vsync 1 (not per sé required, but I want the audio and video streams in the container in such a way that they're not skewed, so if the editor decides to demux and throw away the timestamps, it still works) - -r 25 (material is 25 fps, tried with and without, doesn't matter) - filter:a " aresample=async=10000:min_comp=0.1:min_hard_comp=0.1:max_soft_comp=10000:first_pts=0" None of this helps. I can see ffmpeg dropping and dupping frames, but it doesn't help to fix the slow drift. I was under the impression that ffmpeg would automatically base the synchronisation of the (single) audio stream on the (single) video stream. Is this a correct assumption or do I need to specify an explicit "-map" statement? It looks like ffmpeg takes care that frames are dupped/dropped so the frame rate keeps "solid" 25 fps (or whatever the source frame rate is specified as or is specified with -r), but it seems it does not keep the audio stream synchronised. Thanks for help, Erik.

3 12

T shirt
by David Whitaker 03 Apr '17

03 Apr '17

Hi, I am a big fan of ffmpeg, I like the logo so I decided to have a single white t shirt with the logo printed for my self. The company I asked to print for me wants me to have permission to use the logo first. Here is the logo I want to use https://upload.wikimedia.org/wikipedia/commons/thumb/7/76/FFmpeg_icon.svg/2… ------------------------------- Here is there contact info if needed Casey Maxwell CustomInk Satisfaction Assurance Associate 800-497-2067 service(a)customink.com http://www.customink.com FAST, FRIENDLY HELP 7 DAYS A WEEK Mon-Fri: 8am - 10:30pm Sat: 10am - 6pm Sun: 10am - 9pm (all times eastern) Helpful Links... Frequently Asked Questions: http://customink.com/help_center ------------------------------- If someone could help me find out if it possible to get permission to use this logo for 1 shirt id definitely appreciate the effort. Thanks Dave

7 8

Building Error avcodec_send_packet
by יוסף אלון 03 Apr '17

03 Apr '17

I would like to compile to following program: With the flages: -lavcodec -lavutil -lavfilter -lavformat -lswscale -lz #include "libavcodec/avcodec.h" #include "libavformat/avformat.h" #include "libswscale/swscale.h" #include <stdio.h> // The flush packet is a non-NULL packet with size 0 and data NULL int decode(AVCodecContext *avctx, AVFrame *frame, int *got_frame, AVPacket *pkt) { int ret; *got_frame = 0; if (pkt) { ret = avcodec_send_packet(avctx, pkt); // In particular, we don't expect AVERROR(EAGAIN), because we read all // decoded frames with avcodec_receive_frame() until done. if (ret < 0) return ret == AVERROR_EOF ? 0 : ret; } ret = avcodec_receive_frame(avctx, frame); if (ret < 0 && ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) return ret; if (ret >= 0) *got_frame = 1; return 0; } int main(int argc, char *argv[]) { return 0; But I receive: undefined reference to `avcodec_send_packet' undefined reference to `avcodec_receive_frame' ffmpeg version is: ffmpeg version 3.2.4 Copyright (c) 2000-2017 the FFmpeg developers built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 20160609 configuration: libavutil 55. 34.101 / 55. 34.101 libavcodec 57. 64.101 / 57. 64.101 libavformat 57. 56.101 / 57. 56.101 libavdevice 57. 1.100 / 57. 1.100 libavfilter 6. 65.100 / 6. 65.100 libswscale 4. 2.100 / 4. 2.100 libswresample 2. 3.100 / 2. 3.100 Does some one know, Whats the problem? -- Yosef Alon

2 3

Maximum argument length for tee pseudo muxer
by luke harrison 02 Apr '17

02 Apr '17

I'm preparing a script to take a feed coming in over SDI and encode it into multiple video and audio streams, all for distribution to different stream paths using the tee muxer. I'm sending quite a few different mixes of the streams to an RTMP server which means that my tee muxer is taking quite a large argument. My command line is shown below. ffmpeg -threads 0 -f decklink -i 'UltraStudio Mini Recorder@11' -loglevel debug \ -filter_complex "[0:v]split=2[VID1][VID2];[0:a]channelsplit=channel_layout=stereo[AL][AR]" -map '[AR]' -map '[AL]' -map '[VID1]' -map '[VID2]' -flags +global_header -c:v libx264 -profile:v high -preset veryfast -pix_fmt yuv420p -r 25 -s:v:0 640x360 -s:v:1 426x240 -b:v:0 484k -b:v:1 215k -bufsize 1500k -coder 1 -g 125 -keyint_min 25 -c:a aac -b:a 64k -ar 44100 -async 1 -rtmp_flashver "FMLE/3.0(compatible;FMSc/1.0)" -rtmp_live live -f tee "[select=\'a:0,v:0\':f=flv]'${entrypoint}${streampath1}${datavid11}'| \ [select=\'a:1,v:0\':f=flv]'${entrypoint}${streampath2}${datavid11}'| \ [select=\'a:0,v:1\':f=flv]'${entrypoint}${streampath1}${datavid12}'| \ [select=\'a:1,v:1\':f=flv]'${entrypoint}${streampath2}${datavid12}'| \ [select=\'a:0\':f=flv]'${entrypoint}${streampath1}${dataaud11}'| \ [select=\'a:1\':f=flv]'${entrypoint}${streampath2}${dataaud11}'" All of the output streams up until the last one (with a:1) connect to the server and begin streaming. The issue comes when ffmpeg tries to connect to the final stream. The stream path is cut off for some reason. This results in ffmpeg trying to connect to a stream path that is incomplete and therefore failing. [tcp @ 0x7fa0dc414180] Failed to resolve hostname p.epXXXXXX.i.ak: nodename nor servname provided, or not known [rtmp @ 0x7fa0dc414100] Cannot open connection tcp://p.epXXXXX.i.ak:1935 [tee @ 0x7fa0de801800] Slave '[select='a:1':f=flv]rtmp://XXXXXXX:XXXXXXX@p.epXXXXXX.i.ak': error opening: Input/output error [tee @ 0x7fa0de801800] Slave muxer #5 failed, aborting. I have confirmed that removing characters within the inverted commas ("") after the tee statement allows more of the stream path to be processed by ffmpeg and inversely adding characters within the "" results in less of the stream path being processed by ffmpeg. The characters can be related to any of the commands within the "" and don't need to specifically be any part of the stream paths. To me this looks as if the tee muxer has an undocumented, maximum character input limit for the argument that it takes within the inverted commas. Would any devs or users be able to confirm this based on experience/a deeper knowledge of the code? -- Kind regards, Luke Harrison

3 3

MLV-files
by Cecil Westerhof 01 Apr '17

01 Apr '17

Yesterday I discovered Magic Lantern. I read that ffmpeg supports the MLV format. Does anyone has experience with this? -- Cecil Westerhof Senior Software Engineer LinkedIn: http://www.linkedin.com/in/cecilwesterhof

4 7

movement on ffmpeg .R3D v4 support?
by Rob Wentz 31 Mar '17

31 Mar '17

Hi, I work in video post production, our DPs all shoot on Red cameras. . . it's become the norm that if stuff is coming in shot on anything larger than 2K it's shot on a Red camera and the footage is in .R3D. I was hoping to be able to get somewhere with using ffmpeg to create proxies of .R3Ds before archiving them to LTO using Archiware P5 Archive. The feature works wonders for allowing us to generate scrubbable proxies of archived .mov, mp4, etc video fileswho's full res files live on LTO5 - but we currently can not use ffmpeg on the current (v4) R3D format (Red Camera). We shoot on Red Weapon and raster sizes are getting HUGE with the advent of uHD and 720/VR. It is not practical to cast a wide blind net of footage to unarchive as this material takes up so much space and takes considerable time to unarchive. Most recent tracks of any movement on this topic I found have been silent for a while: https://trac.ffmpeg.org/ticket/2690 I'm curious where things are at in terms of .R3D v4 support for ffmpeg. Thank you! Rob Wentz • Post-Production Supervisor • Pedersen Media Group 501 Second Street, Suite 212, San Francisco, CA 94107

5 11

cross compile FFPLAY
by Lars Heinrichs 31 Mar '17

31 Mar '17

Hello! I can successfully build ffmpeg using a cross compile toolchain (linaro). What I need on my target system is mostly ffplay, however, FFPLAY is missing. Some google searches showed that SDL is required to build FFPLAY, so i installed libsdl2-dev. I am running ./configure using ./configure --enable-cross-compile --cross-prefix=<toolchain_path>/arm-linux-gnueabihf- --arch=arm --cpu=armv7-a --target-os=linux what generates a warning: WARNING: <toolchain_path>/arm-linux-gnueabihf-pkg-config not found, library detection may fail. what is correct, there is no -pkg-config in the toolchain. config.mak had a line !CONFIG_FFPLAY=yes that i removed the ! from. On 'make', everything is build just fine except for ffplay: CC ffplay.o ffplay.c:56:17: fatal error: SDL.h: No such file or directory compilation terminated. I don know if the error is related to the warning I got on running the configure script. Do I need SDL to be built for the target platform (= cross compile and then link the result (how would i link this?)?) or should it be working right away? If -pgk-config does not exist, is that a problem? If what I want is not possible for some reason, what might be an alternative to ffplay?

2 1

warning cseq 10 expected 8 received
by Ankit Gupta 30 Mar '17

30 Mar '17

Hi All, using following command for RTSP to http streaming\ ffmpeg -rtsp_transport tcp -i {RTSP} -c:v libx264 -crf 35 -preset ultrafast -maxrate 3M -bufsize 300k -r 10 -g 20 -movflags +faststart -tune zerolatency -hls_time 1 -hls_list_size 4 -hls_wrap 4 -start_number 1 -hls_allow_cache 0 -threads 1 -loglevel warning -y {} but getting frequent warning "cseq 10 expected 8 received" Any help??????

1 0

H.265/HEVC for Premiere Pro compatibility
by Chris Colton 29 Mar '17

29 Mar '17

Hi all, I tried to get an answer on this before I actually subscribed to the mailing list, so I'm told I didn't receive all the replies so I'm just starting over here. I'm using FFmpeg to transcode to H.265 because Premiere's native encoding is incompatible with Vimeo (Vimeo's transcoding causes a color shift in HEVC from Premiere). I also love the constant rate factor encoding option because it'll decide bitrate depending on the resolution needed. I used the command below and VLC and Vimeo both play it (vimeo with no color issues), but if you try to check the encode to the original in Premiere, it imports with sound playing correctly and just a blank green image instead of the video. Any ideas? -i "source.mov" -y -c:v libx265 -preset veryfast -crf 23 -vf format=yuv420p -c:a aac -b:a 320k -ar 48000 -ac 2 -max_muxing_queue_size 1000 "H265.mp4" ᐧ

6 14

Starting to copy takes long
by Cecil Westerhof 29 Mar '17

29 Mar '17

I want to copy a little bit of a video. I do this with: ffmpeg -i input.mov -ss 16:28 -t 5 output.mov But it takes about 2:20 before the copying starts. Is this normal? -- Cecil Westerhof Senior Software Engineer LinkedIn: http://www.linkedin.com/in/cecilwesterhof

4 6

gain the highest quality with H264 at a certain bit rate
by negin tebyani 29 Mar '17

29 Mar '17

I have encoded my videos using ffmpeg and H264, and this is my ffmpeg command (2 pass encoding): ffmpeg -y -i Edited\ Clips/arsenalVScristalPalas.mp4 -movflags faststart -c:v libx264 -x264opts 'keyint=300:min-keyint=25:8x8dct:sliced-threads=0:subq=6' -deblock 0:0 -flags +loop -preset slow -tune zerolatency -b:v 2048k -maxrate 2048k -bufsize 3000k -vf "scale=-1280:720" -pass 1 -acodec libmp3lame -b:a 128k -coder 1 -me_range 16 -sc_threshold 42 -bf 10 -qmin 0 -qmax 51 -trellis 2 -rc_lookahead 60 -ss 00:01:00 -t 00:01:00 -f mp4 /dev/null ffmpeg -i Edited\ Clips/arsenalVScristalPalas.mp4 -movflags faststart -c:v libx264 -x264opts 'keyint=300:min-keyint=25:8x8dct:sliced-threads=0:subq=6' -deblock 0:0 -flags +loop -preset slow -tune zerolatency -b:v 2048k -maxrate 2048k -bufsize 3000k -vf "scale=-1280:720" -pass 2 -acodec libmp3lame -b:a 128k -coder 1 -me_range 16 -sc_threshold 42 -bf 10 -qmin 0 -qmax 51 -trellis 2 -rc_lookahead 60 -ss 00:01:00 -t 00:01:00 2pass15.mp4 I need the video to be in the highest quality (at the 2000kbps bitrate). I have another video with the same bitrate (from another source), but It has a better quality than my video. I need to reach that quality. I used mediainfo to get the encoding options for that video, and here is the information: General Complete name : arsenalVScristalPalas_hd.mp4 Format : MPEG-4 Format profile : Base Media Codec ID : isom (isom/iso2/avc1/mp41) File size : 171 MiB Duration : 11mn 1s Overall bit rate : 2 164 Kbps Encoded date : UTC 1904-01-01 00:00:00 Tagged date : UTC 1904-01-01 00:00:00 Writing application : Lavf57.63.100 Video ID : 1 Format : AVC Format/Info : Advanced Video Codec Format profile : Main(a)L3.1 Format settings, CABAC : Yes Format settings, ReFrames : 6 frames Codec ID : avc1 Codec ID/Info : Advanced Video Coding Duration : 11mn 1s Bit rate : 2 048 Kbps Width : 1 280 pixels Height : 720 pixels Display aspect ratio : 16:9 Frame rate mode : Constant Frame rate : 50.000 fps Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Bits/(Pixel*Frame) : 0.044 Stream size : 160 MiB (94%) Writing library : x264 core 148 r2643 5c65704 Encoding settings : cabac=1 / ref=6 / deblock=1:1:1 / analyse=0x1:0x131 / me=umh / subme=9 / psy=1 / psy_rd=0.40:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=2 / 8x8dct=0 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=22 / lookahead_threads=5 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=10 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=2 / keyint=300 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=60 / rc=2pass / mbtree=1 / bitrate=2048 / ratetol=1.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / vbv_maxrate=2048 / vbv_bufsize=5000 / nal_hrd=none / filler=0 / ip_ratio=1.41 / aq=1:0.60 Language : English Encoded date : UTC 1904-01-01 00:00:00 Tagged date : UTC 1904-01-01 00:00:00 Audio ID : 2 Format : AAC Format/Info : Advanced Audio Codec Format profile : HE-AAC / LC Codec ID : 40 Duration : 11mn 1s Duration_LastFrame : -23ms Bit rate mode : Constant Bit rate : 128 Kbps Channel(s) : 2 channels Channel positions : Front: L R Sampling rate : 48.0 KHz / 24.0 KHz Frame rate : 23.438 fps (1024 spf) Compression mode : Lossy Stream size : 10.1 MiB (6%) Language : English Default : Yes Alternate group : 1 Encoded date : UTC 1904-01-01 00:00:00 Tagged date : UTC 1904-01-01 00:00:00 and this is the information of my video: General Complete name : 2pass14.mp4 Format : MPEG-4 Format profile : Base Media Codec ID : isom (isom/iso2/avc1/mp41) File size : 15.4 MiB Duration : 1mn 0s Overall bit rate : 2 150 Kbps Encoded date : UTC 1904-01-01 00:00:00 Tagged date : UTC 1904-01-01 00:00:00 Writing application : Lavf56.40.101 Video ID : 1 Format : AVC Format/Info : Advanced Video Codec Format profile : High(a)L3.2 Format settings, CABAC : Yes Format settings, ReFrames : 5 frames Codec ID : avc1 Codec ID/Info : Advanced Video Coding Duration : 1mn 0s Bit rate : 2 048 Kbps Width : 1 280 pixels Height : 720 pixels Display aspect ratio : 16:9 Frame rate mode : Constant Frame rate : 50.000 fps Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Bits/(Pixel*Frame) : 0.044 Stream size : 14.4 MiB (94%) Writing library : x264 core 148 r2643 5c65704 Encoding settings : cabac=1 / ref=5 / deblock=1:3:3 / analyse=0x3:0x113 / me=umh / subme=6 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=6 / lookahead_threads=3 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=10 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=2 / keyint=300 / keyint_min=25 / scenecut=42 / intra_refresh=0 / rc_lookahead=0 / rc=2pass / mbtree=0 / bitrate=2048 / ratetol=1.0 / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / vbv_maxrate=2048 / vbv_bufsize=3000 / nal_hrd=none / filler=0 / ip_ratio=1.40 / pb_ratio=1.30 / aq=1:1.00 Language : English Encoded date : UTC 1904-01-01 00:00:00 Tagged date : UTC 1904-01-01 00:00:00 Audio ID : 2 Format : MPEG Audio Format version : Version 1 Format profile : Layer 3 Mode : Joint stereo Mode extension : MS Stereo Codec ID : 6B Duration : 1mn 0s Duration_LastFrame : -1ms Bit rate mode : Constant Bit rate : 128 Kbps Maximum bit rate : 2 048 Kbps Channel(s) : 2 channels Sampling rate : 48.0 KHz Compression mode : Lossy Stream size : 938 KiB (6%) Language : English Default : Yes Alternate group : 1 Encoded date : UTC 1904-01-01 00:00:00 Tagged date : UTC 1904-01-01 00:00:00 is there anything that I am doing wrong?? any suggestions on how to improve my output quality?? and here is a demo of videos, the video that has a better quality: https://ufile.io/b7a1b my video, that I need to improve quality: https://ufile.io/363f11

4 24

Using h264 video format commercially
by sunil_gupta01 29 Mar '17

29 Mar '17

Hi there, We have developed a commercial offering to create personalized videos; we're using FFmpeg to generate the videos in H.264 format. What are the legal/license obligations in terms of using FFmpeg to generate videos commercially? Do we need to purchase a license from one of codec providers? Regards, Sunil G.

3 2

ffplay on current build does not play mkv file but on old build does.
by Tim Hiles 29 Mar '17

29 Mar '17

Hi, I have two zeranoe windows builds installed. Current version built and an older build from 2015. I've created a 5 second video (full command line and uncut output below) using current git. I only hear audio when I play this file back when I use current build. However the 2015 build plays fine. I've also included ffplay.exe command line and uncut output below from both older and current builds below. Also, possibly separate issue but as you can see I do get an error when creating the video that doesn't effect playing the file with the old version or VLC. But, I'm curious as to why I get the error, how this effects the file, and perhaps how to fix it if it should be fixed. Lastly, I've included the report log if that provides any further detail to aid. C:\Users\c0nF3x41l3s>c:\ffmpeg\ffmpeg\bin\ffmpeg.exe -f dshow -i video="screen-capture-recorder":audio="Internal Mic (ID T High Definiti" -flags +global_header -vcodec libx264 -pix_fmt yuv420p -preset ultrafast -acodec aac -ac 1 -ar 22050 -t 00:00:05 -report "C:\CMT\Test.mkv" ffmpeg started on 2016-11-09 at 10:02:54 Report written to "ffmpeg-20161109-100254.log" ffmpeg version N-82274-g34aeb5d Copyright (c) 2000-2016 the FFmpeg developers built with gcc 5.4.0 (GCC) configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-dxva2 --enable-libmfx --enable-nvenc --ena ble-avisynth --enable-bzlib --enable-libebur128 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --ena ble-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --e nable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-lib openh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsnappy --enable-lib soxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvo rbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-li bxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib libavutil 55. 35.100 / 55. 35.100 libavcodec 57. 66.101 / 57. 66.101 libavformat 57. 57.100 / 57. 57.100 libavdevice 57. 2.100 / 57. 2.100 libavfilter 6. 66.100 / 6. 66.100 libswscale 4. 3.100 / 4. 3.100 libswresample 2. 4.100 / 2. 4.100 libpostproc 54. 2.100 / 54. 2.100 leaving aero onGuessed Channel Layout for Input Stream #0.1 : stereo Input #0, dshow, from 'video=screen-capture-recorder:audio=Internal Mic (IDT High Definiti': Duration: N/A, start: 349092.854000, bitrate: N/A Stream #0:0: Video: rawvideo, bgr0, 1366x768, 30 fps, 30 tbr, 10000k tbn, 10000k tbc Stream #0:1: Audio: pcm_s16le, 44100 Hz, stereo, s16, 1411 kb/s [libx264 @ 0000000000397120] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX [libx264 @ 0000000000397120] profile Constrained Baseline, level 3.2 [libx264 @ 0000000000397120] 264 - core 148 r2721 72d53ab - H.264/MPEG-4 AVC codec - Copyleft 2003-2016 - http://www.vid eolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=12 lookahead_th reads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=25 scenecut=0 intra_refresh=0 rc=crf mbtree=0 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq =0 Output #0, matroska, to 'C:\CMT\Test.mkv': Metadata: encoder : Lavf57.57.100 Stream #0:0: Video: h264 (libx264) (H264 / 0x34363248), yuv420p, 1366x768, q=-1--1, 30 fps, 1k tbn, 30 tbc Metadata: encoder : Lavc57.66.101 libx264 Side data: cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1 Stream #0:1: Audio: aac (LC) ([255][0][0][0] / 0x00FF), 22050 Hz, mono, fltp, 69 kb/s Metadata: encoder : Lavc57.66.101 aac Stream mapping: Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264)) Stream #0:1 -> #0:1 (pcm_s16le (native) -> aac (native)) Press [q] to stop, [?] for help [swscaler @ 00000000003a7fe0] Warning: data is not aligned! This can lead to a speedloss frame= 150 fps= 28 q=-1.0 Lsize= 758kB time=00:00:05.00 bitrate=1239.5kbits/s speed=0.919x video:715kB audio:40kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.349632% [libx264 @ 0000000000397120] frame I:1 Avg QP:20.00 size:218939 [libx264 @ 0000000000397120] frame P:149 Avg QP:13.87 size: 3441 [libx264 @ 0000000000397120] mb I I16..4: 100.0% 0.0% 0.0% [libx264 @ 0000000000397120] mb P I16..4: 0.6% 0.0% 0.0% P16..4: 2.9% 0.0% 0.0% 0.0% 0.0% skip:96.6% [libx264 @ 0000000000397120] coded y,uvDC,uvAC intra: 44.2% 4.5% 4.0% inter: 1.6% 0.3% 0.2% [libx264 @ 0000000000397120] i16 v,h,dc,p: 72% 25% 2% 2% [libx264 @ 0000000000397120] i8c dc,h,v,p: 88% 9% 3% 0% [libx264 @ 0000000000397120] kb/s:1170.64 [aac @ 000000000039a020] Qavg: 3008.527 [dshow @ 00000000006a8880] real-time buffer [screen-capture-recorder] [video input] too full or near too full (275% of s ize: 3041280 [rtbufsize parameter])! frame dropped! C:\Users\c0nF3x41l3s>"C:\ffmpegOldTwo\ffmpeg\bin\ffplay.exe" -i C:\CMT\Test.mkv ffplay version N-76123-g002b049 Copyright (c) 2003-2015 the FFmpeg developers built with gcc 5.2.0 (GCC) configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfi g --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca -- enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libm p3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --en able-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --ena ble-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enabl e-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enable-zlib libavutil 55. 4.100 / 55. 4.100 libavcodec 57. 7.100 / 57. 7.100 libavformat 57. 8.102 / 57. 8.102 libavdevice 57. 0.100 / 57. 0.100 libavfilter 6. 11.100 / 6. 11.100 libswscale 4. 0.100 / 4. 0.100 libswresample 2. 0.100 / 2. 0.100 libpostproc 54. 0.100 / 54. 0.100 Input #0, matroska,webm, from 'C:\CMT\Test.mkv':B sq= 0B f=0/0 Metadata: ENCODER : Lavf57.57.100 Duration: 00:00:05.05, start: 0.000000, bitrate: 1229 kb/s Stream #0:0: Video: h264 (Constrained Baseline), yuv420p, 1366x768, SAR 1:1 DAR 683:384, 30 fps, 30 tbr, 1k tbn, 60 tbc (default) Metadata: ENCODER : Lavc57.66.101 libx264 DURATION : 00:00:05.050000000 Stream #0:1: Audio: aac (LC), 22050 Hz, mono, fltp (default) Metadata: ENCODER : Lavc57.66.101 aac DURATION : 00:00:05.043000000 5.03 A-V: -7.318 fd= 0 aq= 0KB vq= 0KB sq= 0B f=0/0 C:\Users\c0nF3x41l3s>"C:\ffmpeg\ffmpeg\bin\ffplay.exe" -i C:\CMT\Test.mkv ffplay version N-82274-g34aeb5d Copyright (c) 2003-2016 the FFmpeg developers built with gcc 5.4.0 (GCC) configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-dxva2 --enable-libmfx --enable-nvenc --ena ble-avisynth --enable-bzlib --enable-libebur128 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --ena ble-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --e nable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-lib openh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsnappy --enable-lib soxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvo rbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-li bxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib libavutil 55. 35.100 / 55. 35.100 libavcodec 57. 66.101 / 57. 66.101 libavformat 57. 57.100 / 57. 57.100 libavdevice 57. 2.100 / 57. 2.100 libavfilter 6. 66.100 / 6. 66.100 libswscale 4. 3.100 / 4. 3.100 libswresample 2. 4.100 / 2. 4.100 libpostproc 54. 2.100 / 54. 2.100 Input #0, matroska,webm, from 'C:\CMT\Test.mkv':B sq= 0B f=0/0 Metadata: ENCODER : Lavf57.57.100 Duration: 00:00:05.05, start: 0.000000, bitrate: 1229 kb/s Stream #0:0: Video: h264 (Constrained Baseline), yuv420p(progressive), 1366x768, 30 fps, 30 tbr, 1k tbn, 60 tbc (def ault) Metadata: ENCODER : Lavc57.66.101 libx264 DURATION : 00:00:05.050000000 Stream #0:1: Audio: aac (LC), 22050 Hz, mono, fltp (default) Metadata: ENCODER : Lavc57.66.101 aac DURATION : 00:00:05.043000000 -0.03 A-V: nan fd= 0 aq= 11KB vq= 102KB sq= 0B f=0/0 Thanks!! Tim

4 10

does ffmpeg support video/image watermark
by qw 29 Mar '17

29 Mar '17

Hi, Does ffmpeg support video/image watermark? or is there some three-party library of video/image watermark that ffmpeg supports? Thanks! Regards Andrew

3 2

Synchronize video and audio from SDP file
by Jonathan Kanarek 27 Mar '17

27 Mar '17

Hi, I have RTP packets in node.js server and I want to forward them to ffmpeg. I generate SDP files in the node.js server side and execute ffmpeg with the SDP as input. SDP: v=0 o=mediasoup 579ba7f3ba8b38632222e85adc6a8b7bed13aae9 0 IN IP4 192.168.193.182 s=579ba7f3ba8b38632222e85adc6a8b7bed13aae9 c=IN IP4 192.168.193.182 t=0 0 a=group:LS video audio m=audio 33402 RTP/AVP 111 a=rtpmap:111 opus/48000 a=fmtp:111 minptime=10;useinbandfec=1 a=rtcp-fb:111 transport-cc a=extmap:1 urn:ietf:params:rtp-hdrext:ssrc-audio-level a=mid:audio a=sendrecv m=video 33404 RTP/AVP 107 a=rtpmap:107 H264/90000 a=fmtp:107 level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=42e01f a=rtcp-fb:107 ccm fir a=rtcp-fb:107 nack a=rtcp-fb:107 nack pli a=rtcp-fb:107 goog-remb a=rtcp-fb:107 transport-cc a=extmap:2 urn:ietf:params:rtp-hdrext:toffset a=extmap:3 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time a=extmap:4 urn:3gpp:video-orientation a=extmap:5 http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01 a=extmap:6 http://www.webrtc.org/experiments/rtp-hdrext/playout-delay a=mid:video a=sendrecv Command: ffmpeg -max_delay 5000 -reorder_queue_size 16384 -protocol_whitelist file,crypto,udp,rtp -re -i input.sdp -vcodec copy -acodec aac -y output.mp4 I weird video that plays at each frame either the video or the audio but never both of them together. BTW, when I create separate SDP files for the video and the audio and stream them as two inputs into the same output, I get valid stream but the audio is not in sync (about a second offset). ffmpeg -max_delay 5000 -reorder_queue_size 16384 -protocol_whitelist file,crypto,udp,rtp -re -i video.0.sdp -max_delay 5000 -reorder_queue_size 16384 -protocol_whitelist file,crypto,udp,rtp -re -i audio.1.sdp -vcodec copy -acodec aac -shortest -y output.mp4 What is wrong with my SDP? Thanks, Johnathan Kanarek

2 1

ffmpeg fails to compile with opencv of Fedora 25
by pgaltieri . 27 Mar '17

27 Mar '17

I have checked out the latest version of ffmpeg from Git repository and for the last week when I try to compile it I get ERROR: opencv not found If you think configure made a mistake, make sure you are using the latest version from Git. If the latest version fails, report the problem to the ffmpeg-user(a)ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net. Include the log file "config.log" produced by configure as this will help solve the problem. I have the opencv libraries installed. The error comes from the following: BEGIN /tmp/ffconf.N7phMWii.c 1 #include <opencv2/core/core_c.h> 2 #include <stdint.h> 3 long check_cvCreateImageHeader(void) { return (long) cvCreateImageHeader; } 4 int main(void) { int ret = 0; 5 ret |= ((intptr_t)check_cvCreateImageHeader) & 0xFFFF; 6 return ret; } END /tmp/ffconf.N7phMWii.c gcc -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -DPIC -I/usr/include/opencl-utils -std=c11 -fomit-frame-pointer -fPIC -pthread -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/fribidi -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/opencv -c -o /tmp/ffconf.JalceQGi.o /tmp/ffconf.N7phMWii.c gcc -L/usr/local/lib64 -Wl,--as-needed -Wl,-z,noexecstack -I/usr/include/opencv -o /tmp/ffconf.Fy5RqLpT /tmp/ffconf.JalceQGi.o -lopencv_shape -lopencv_stitching -lopencv_superres -lopencv_videostab -lopencv_aruco -lopencv_bgsegm -lopencv_bioinspired -lopencv_ccalib -lopencv_cvv -lopencv_dnn -lopencv_dpm -lopencv_fuzzy -lopencv_hdf -lopencv_line_descriptor -lopencv_optflow -lopencv_plot -lopencv_reg -lopencv_saliency -lopencv_stereo -lopencv_structured_light -lopencv_rgbd -lopencv_surface_matching -lopencv_tracking -lopencv_datasets -lopencv_text -lopencv_face -lopencv_video -lopencv_ximgproc -lopencv_calib3d -lopencv_features2d -lopencv_flann -lopencv_xobjdetect -lopencv_objdetect -lopencv_ml -lopencv_xphoto -lopencv_highgui -lopencv_videoio -lopencv_imgcodecs -lopencv_photo -lopencv_imgproc -lopencv_core -lopencore-amrwb -lopencore-amrnb -lmp3lame -lgsm -lass -lcrystalhd -lm -llzma -lbz2 -lz -pthread /tmp/ffconf.JalceQGi.o: In function `cvPointFrom32f': ffconf.N7phMWii.c:(.text+0x5ca): undefined reference to `cvRound' ffconf.N7phMWii.c:(.text+0x5e2): undefined reference to `cvRound' /tmp/ffconf.JalceQGi.o: In function `cvReadInt': ffconf.N7phMWii.c:(.text+0xf00): undefined reference to `cvRound' collect2: error: ld returned 1 exit status This is from config.log. I don't know what the exact change is, but this code needs to be compiled with g++ not gcc. Any assistance is appreciated. Paolo

2 1

Slight blur on converted video
by Dave 27 Mar '17

27 Mar '17

Hi guys, I am having a problem where there is a slight blur on converted videos. I am trying to automate a couple of workflows where Adobe Media Encoder is currently used. Here are the commands that I am running: MXF Conversion: ffmpeg -y -i in.mxf -r 25 -vf settb=1/25 -flags +ilme+ildct -timecode 00:00:00:00 -acodec pcm_s16le -filter_complex "[:1:a][:2:a]amerge=inputs=2[aout]" -map "[aout]" -map 0:0 -qscale:v 6 -vcodec prores_ks -profile:v 1 -video_track_timescale 25 -copytb -1 out.mov MP4 Conversion: ffmpeg -y -i in.mp4 -acodec pcm_s16le -vcodec prores_ks -profile:v 1 -vf scale=interl=1 -sws_flags full_chroma_inp+full_chroma_int -copytb -1 out.mov I have uploaded a couple of sample screenshots to http://www.bit.st/screenshots/ <http://www.bit.st/screenshots/> Thank you in advance! /dave.

7 24

ffserver support
by Ofir Attia 26 Mar '17

26 Mar '17

Hi, I posted question in one of the threads on the forum. There is some updates regard continue maintain ffserver ? developers should consider use it in new implementations of streaming servers ? there is alternative ? Thanks.

3 2

Unable to receive RTP payload type 97 without an SDP file describing it
by Mickael MONSIEUR 25 Mar '17

25 Mar '17

Hello, I try to make a low latency sound link with ffmpeg. With MP3, it works: Encoder: ffmpeg -re -f alsa -i default:CARD=CODEC -acodec mp3 -ab 128k -ac 2 -f rtp rtp://10.1.0.19:8000 Decoder: ffplay rtp://127.0.0.1:8000 It works! With libopus (better codec) Encoder: ffmpeg -re -f alsa -i default:CARD=CODEC -acodec libopus -ab 64k -ac 2 -f rtp rtp://10.1.0.19:8000 Decoder: ffplay rtp://127.0.0.1:8000 i have the error: [rtp @ 0xb45004a0] Unable to receive RTP payload type 97 without an SDP file describing it Input #0, rtp, from 'rtp://127.0.0.1:8000': Duration: N/A, bitrate: N/A Failed to open file 'rtp://127.0.0.1:8000' or configure filtergraph ffplay version N-81350-g3282e31 Copyright (c) 2003-2016 the FFmpeg developers built with gcc 4.9.2 (Raspbian 4.9.2-10) configuration: --arch=armel --target-os=linux --enable-ffplay --enable-gpl --enable-libvorbis --enable-libopus --enable-libfdk-aac --enable-libtwolame --enable-libmp3lame --enable-nonfree --extra-cflags=-I/arm/include --extra-ldflags=-L/arm/lib --extra-libs=-ldl Thanks,

1 0

SMTPE 2022-1 FEC
by Péter Bittó 24 Mar '17

24 Mar '17

Hello! I would like to ask, if it is available to compile ffmpeg with SMTPE 2022 Forward Error Correction in omxplayer example? Or how would it be possible to sens the buffer trough a smtpe python program before send it to omxplayer? Thanks, Peter Bittó

1 0

compiler problem of Ffmpeg in Android 7.0 complier environment
by 《？》 24 Mar '17

24 Mar '17

Dear ： Ffmpeg R & D team , I can not compile ffmpeg successfully in Android 7.0 compiler environment. Always notic it had been successfully, But in fact, there is no successful compiler and no libraries can be found. the ffmpeg version is : 2.2.6 the pic as below and the attachment is my configueration: look forward to your replay. Best regards Phil 北京市海淀区北四环中路229号海泰大厦1717室 Tel No. : (86)010-82883008 Mobile : +86 18611387653

2 1

H.265 Will not Play in Premiere
by Chris Colton 24 Mar '17

24 Mar '17

Hi, I'm using the following to transcode files to H.265 for final delivery since they can be so small and still look great. However, they play fine in VLC and even Vimeo, but Premiere Pro shows a blank, solid green image in the file instead of the actual video. Any ideas? I tried adding -vf format=yuv420p and it had no effect. -i "<SourceFileName>" -y -c:v libx265 -preset veryfast -crf 23 -c:a aac -b:a 320k -ar 48000 -ac 2 -max_muxing_queue_size 1000 "<OutputPath><PureSourceFileNameWOExtension>_H265.mp4" ᐧ

5 5

Option -nostdin not working correctly?
by Lars Kiesow 24 Mar '17

24 Mar '17

Hi everyone, I want to run FFmpeg as a background process. But if you run something like the following command line, the process will bu suspended as long as FFmpeg is in the background: $ ffmpeg -y -f lavfi -i testsrc=r=1 -t 300 out.mp4& ffmpeg version 3.1.7 Copyright (c) 2000-2017 the FFmpeg developers ... [1]+ Stopped ffmpeg -y -f lavfi -i testsrc=r=1 -t 300 out.mp4 $ ls -l out.mp4 ls: cannot access 'out.mp4': No such file or directory Only after using `fg` to get the process to the foreground, FFmpeg will actually start the encoding. I have tried using the `-nostdin` option to fix that as the documentation states: -stdin Enable interaction on standard input. On by default unless standard input is used as an input. To explicitly disable interaction you need to specify "-nostdin". Disabling interaction on standard input is useful, for example, if ffmpeg is in the background process group. Roughly the same result can be achieved with "ffmpeg ... < /dev/null" but it requires a shell. But the option seems to have no effect, except for disabling the keyboard controls: $ ffmpeg -nostdin -y -f lavfi -i testsrc=r=1 -t 300 out.mp4& ffmpeg version 3.1.7 Copyright (c) 2000-2017 the FFmpeg developers ... [1]+ Stopped ffmpeg -nostdin -y -f lavfi -i ... out.mp4 $ ls -l out.mp4 ls: cannot access 'out.mp4': No such file or directory What works id to pipe /dev/null into ffmpeg like this: $ ffmpeg -f lavfi -i testsrc=r=1 -t 300 out.mp4 < /dev/null & The problem is that a shell is required for this and I do not want to start FFmpeg from a shell but from another process. Again, I can attach stdin to /dev/null in that subprocess call, but from how I interpret the docs, that is what `-nostdin` should prevent. Am I missing anything? Is that a bug in the current FFmpeg version? Best regards, Lars

2 1

how to see what version of ffv1
by jshupert＠theppsgroup.com 24 Mar '17

24 Mar '17

Friends, 3 Qs q1 I am wondering how I can tell what version of ffv1 a file is encoded with? I find a ticket 1534 https://trac.ffmpeg.org/ticket/1534 that seems to have the same concern ffprobe -show_streams does *not show that a file was made with q2 is it true that the following command will create a file with ffv1 version 3? ffmpeg -i <input> -vcodec ffv1 -level 3 -coder 1 <outfile> q3 how can i see that my ffmpeg compile has ffv1 version 3 capability thanks much jS

3 2

ffprobe: frame position of error?
by Peter B. 22 Mar '17

22 Mar '17

Hello :) I'm using ffprobe to analyze an MPEG-TS broadcast recording that has problems. ffprobe finds issues, but I can't seem to find out at what time position they are :( For example: ================ [h264 @ 0x148b6e0] Reinit context to 1280x720, pix_fmt: yuv420p [h264 @ 0x148b6e0] error while decoding MB 0 27, bytestream -13 [h264 @ 0x148b6e0] Cannot use next picture in error concealment [h264 @ 0x148b6e0] concealing 1489 DC, 1489 AC, 1489 MV errors in P frame How can I tell ffprobe to tell me the (frame/time-)position of that error? I'm grateful for any hints :D Thank you in advance, Peter B. Here's the command: // ------------------------------------------------------------ $ ffprobe -i input.ts -select_streams v:0 -show_frames // ------------------------------------------------------------ Here's the console output: (I've "compressed" a repeating error message though) // ------------------------------------------------------------ ffprobe version 2.6.9 Copyright (c) 2007-2016 the FFmpeg developers built with gcc 4.9.2 (Debian 4.9.2-10) configuration: --prefix=/usr --extra-cflags='-g -O2 -fstack-protector-strong -Wformat -Werror=format-security ' --extra-ldflags='-Wl,-z,relro' --cc='ccache cc' --enable-shared --enable-libmp3lame --enable-gpl --enable-nonfree --enable-libvorbis --enable-pthreads --enable-libfaac --enable-libxvid --enable-postproc --enable-x11grab --enable-libgsm --enable-libtheora --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-libspeex --enable-nonfree --disable-stripping --enable-libvpx --enable-libschroedinger --disable-encoder=libschroedinger --enable-version3 --enable-libopenjpeg --enable-librtmp --enable-avfilter --enable-libfreetype --enable-libvo-aacenc --disable-decoder=amrnb --enable-libvo-amrwbenc --enable-libaacplus --libdir=/usr/lib/x86_64-linux-gnu --disable-vda --enable-libbluray --enable-libcdio --enable-gnutls --enable-frei0r --enable-openssl --enable-libass --enable-libopus --enable-fontconfig --enable-libpulse --disable-mips32r2 --disable-mipsdspr1 --disable-mipsdspr2 --enable-libvidstab --enable-libzvbi --enable-avresample --disable-htmlpages --disable-podpages --enable-libutvideo --enable-libfdk-aac --enable-libx265 --enable-libiec61883 --enable-vaapi --enable-libdc1394 --disable-altivec --shlibdir=/usr/lib/x86_64-linux-gnu libavutil 54. 20.100 / 54. 20.100 libavcodec 56. 26.100 / 56. 26.100 libavformat 56. 25.101 / 56. 25.101 libavdevice 56. 4.100 / 56. 4.100 libavfilter 5. 11.102 / 5. 11.102 libavresample 2. 1. 0 / 2. 1. 0 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 1.100 / 1. 1.100 libpostproc 53. 3.100 / 53. 3.100 [aac @ 0x1308180] element type mismatch 1 != 0 [h264 @ 0x1308d00] non-existing PPS 0 referenced Last message repeated 1 times [h264 @ 0x1308d00] decode_slice_header error [h264 @ 0x1308d00] no frame! [h264 @ 0x1308d00] non-existing PPS 0 referenced Last message repeated 1 times // ----------------------------------- Above error repeats like 20+ times... // ----------------------------------- Input #0, mpegts, from 'input.ts': Duration: 00:04:42.30, start: 427.090167, bitrate: 2377 kb/s Program 1 Stream #0:0[0x101]: Audio: aac (HE-AAC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 62 kb/s Stream #0:1[0x102]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p, 1280x720, 30 fps, 29.97 tbr, 90k tbn, 60 tbc Stream #0:2[0x103]: Data: timed_id3 (ID3 / 0x20334449) Unsupported codec with id 1414087731 for input stream 2 [h264 @ 0x1446440] Missing reference picture, default is 0 [h264 @ 0x148b6e0] Reinit context to 1056x608, pix_fmt: yuv420p [mpegts @ 0x1304260] DTS 8589934592 < 8590832488 out of order [mpegts @ 0x1304260] DTS 55209870 < 8592634286 out of order [h264 @ 0x148b6e0] Reinit context to 1280x720, pix_fmt: yuv420p [h264 @ 0x148b6e0] error while decoding MB 0 27, bytestream -13 [h264 @ 0x148b6e0] Cannot use next picture in error concealment [h264 @ 0x148b6e0] concealing 1489 DC, 1489 AC, 1489 MV errors in P frame

2 2

Regarding using ffmpeg
by Alexandru Tudoran 22 Mar '17

22 Mar '17

Hi, I'm using ffmpeg encoder along with x264 on a raspberry pi to video stream on a web application using NodeJS. The client side uses a JSMpeg decoder which from what i read is a MPEG-1 decoder. Even though the streaming works perfectly fine I do not understand how is it possible to encode the images using ffmpeg and decode them using JSMpeg. Could you please let me know how this is possible. I am very interested into this subject and I would really appreciate your help. Thank you! Regards, Alex

2 1

Optimizing CPU Utilization
by Ankit Gupta 21 Mar '17

21 Mar '17

Hi All, Need help regarding resources utilization of ffmpeg while generating .m3u8 from RTSP feed. I am using following command for .m3u8 generation from RTSP ffmpeg -rtsp_transport tcp -i {RTSP} -c:v libx264 -crf 35 -preset ultrafast -maxrate 3M -bufsize 100K -r 50 -g 100 -movflags +faststart -tune zerolatency -hls_time 1 -hls_list_size 4 -hls_wrap4 -start_number 1 -hls_allow_cache 0 -threads 1 -loglevel warning -y {PATHM3U8} This is on demand streaming. Let us say I have five camera. User clicks on live camera request of any one, that starts one instance of FFMpeg with above command. Its taking a lot of memory and CPU resources? Any thoughts on how to optimize it? Regards, Ankit Kumar Gupta

3 2

cuvid-decoding, npp resize, nvenc encoding - "green" output
by Aleksey Bragin 21 Mar '17

21 Mar '17

Hello, I'm trying to transcode couple camera streams on low-end i3 box equipped with nvidia gpu, but even with latest git version, I'm not able to make it work. My goal is to do decoding, resizing and encoding w/o copying frames to/from ram, according to https://trac.ffmpeg.org/wiki/HWAccelIntro it should be working if I use cmd like this: ffmpeg -hwaccel_device 0 -hwaccel cuvid -c:v h264_cuvid -i 'udp://@239.1.1.1:5555?fifo_size=1000000&overrun_nonfatal=1&buffer_size=100000' -vf scale_npp=-1:360 -vcodec h264_nvenc -preset slow -b:v 1200k -bufsize 500k -minrate 1200k -maxrate 1200k -f mpegts -y 'udp://239.2.2.2:10001' But as soon as I add resize, I get "green" screen effect - <https://www.dropbox.com/s/cvutg01i6crn4nv/Screenshot%202017-03-21%2004.09.2…> http://imgur.com/WljkD6g without resize filter - it's working just fine. I've also tried using solution from https://trac.ffmpeg.org/ticket/5587 but even if I found pixel format which is accepted, results are the same. I believe that problem is somewhere in pixel format, but can't figure out what I'm missing :(

1 0

Compilation Error on including libffmpeg-audio-dec library
by Taruna Kumari 21 Mar '17

21 Mar '17

Hi, I have included library libffmpeg-audio-dec in my code base through kernel configuration file. I am cross compiling my code for openwrt. The error message is: cd /home/taruna/GRX_350/UGW-7.1.1/UGW-7.1.1-SW-CD/Sources/UGW-7.1.1/build_dir/target-mips_mips32_uClibc-0.9.33.2_grx350_1600_mr_vdsl_lte_sec_gw_711/ffmpeg-audio-dec/ffmpeg-2.6.2; CFLAGS="-Os -pipe -mips32r2 -mtune=1004kc -fno-caller-saves -fhonour-copts -fno-caller-saves -fhonour-copts -Wno-error=unused-but-set-variable -msoft-float -Wformat -Werror=format-security -D_FORTIFY_SOURCE=2 -Wl,-z,now -Wl,-z,relro -I/home/taruna/GRX_350/UGW-7.1.1/UGW-7.1.1-SW-CD/Sources/UGW-7.1.1/staging_dir/target-mips_mips32_uClibc-0.9.33.2_grx350_1600_mr_vdsl_lte_sec_gw_711/usr/include -I/home/taruna/GRX_350/UGW-7.1.1/UGW-7.1.1-SW-CD/Sources/UGW-7.1.1/staging_dir/target-mips_mips32_uClibc-0.9.33.2_grx350_1600_mr_vdsl_lte_sec_gw_711/include -I/home/taruna/GRX_350/UGW-7.1.1/UGW-7.1.1-SW-CD/Sources/UGW-7.1.1/staging_dir/toolchain-mips_mips32_gcc-4.8-linaro_uClibc-0.9.33.2/usr/include -I/home/taruna/GRX_350/UGW-7.1.1/UGW-7.1.1-SW-CD/Sources/UGW-7.1.1/staging_dir/toolchain-mips_mips32_gcc-4.8-linaro_uClibc-0.9.33.2/include -fpic" LDFLAGS="-L/home/taruna/GRX_350/UGW-7.1.1/UGW-7.1.1-SW-CD/Sources/UGW-7.1.1/staging_dir/target-mips_mips32_uClibc-0.9.33.2_grx350_1600_mr_vdsl_lte_sec_gw_711/usr/lib -L/home/taruna/GRX_350/UGW-7.1.1/UGW-7.1.1-SW-CD/Sources/UGW-7.1.1/staging_dir/target-mips_mips32_uClibc-0.9.33.2_grx350_1600_mr_vdsl_lte_sec_gw_711/lib -L/home/taruna/GRX_350/UGW-7.1.1/UGW-7.1.1-SW-CD/Sources/UGW-7.1.1/staging_dir/toolchain-mips_mips32_gcc-4.8-linaro_uClibc-0.9.33.2/usr/lib -L/home/taruna/GRX_350/UGW-7.1.1/UGW-7.1.1-SW-CD/Sources/UGW-7.1.1/staging_dir/toolchain-mips_mips32_gcc-4.8-linaro_uClibc-0.9.33.2/lib" ./configure --enable-cross-compile --cross-prefix="mips-openwrt-linux-uclibc-" --arch="mips" --target-os=linux --prefix="/usr" --pkg-config="pkg-config" --enable-shared --enable-static --enable-small --enable-pthreads --enable-zlib --disable-runtime-cpudetect --disable-doc --disable-debug --enable-gpl --enable-version3 --disable-altivec --disable-amd3dnow --disable-amd3dnowext --disable-mmx --disable-mmxext --disable-sse --disable-sse2 --disable-sse3 --disable-ssse3 --disable-sse4 --disable-sse42 --disable-avx --disable-xop --disable-fma3 --disable-fma4 --disable-avx2 --disable-vfp --disable-neon --disable-inline-asm --disable-yasm --disable-mips32r2 --disable-mipsdspr1 --disable-mipsdspr2 --disable-mipsfpu --disable-dxva2 --disable-lzma --disable-vaapi --disable-vda --disable-vdpau --disable-outdevs --disable-programs --disable-avfilter --disable-postproc --disable-swresample --disable-swscale --disable-everything --enable-decoder="aac" --enable-decoder="aac_latm" --enable-decoder="ac3" --enable-decoder="adpcm_*" --enable-decoder="alac" --enable-decoder="amrnb" --enable-decoder="amrwb" --enable-decoder="ape" --enable-decoder="atrac3" --enable-decoder="flac" --enable-decoder="mp2" --enable-decoder="mp3*" --enable-decoder="mpc7" --enable-decoder="mpc8" --enable-decoder="pcm_*" --enable-decoder="vorbis" --enable-decoder="wavpack" --enable-decoder="wmav1" --enable-decoder="wmav2" --enable-decoder="wmalossless" --enable-decoder="wmapro" --enable-decoder="zlib" --enable-demuxer="aac" --enable-demuxer="ac3" --enable-demuxer="aiff" --enable-demuxer="amr" --enable-demuxer="ape" --enable-demuxer="avi" --enable-demuxer="flac" --enable-demuxer="ffm" --enable-demuxer="matroska" --enable-demuxer="mp3" --enable-demuxer="mov" --enable-demuxer="mpc" --enable-demuxer="mpc8" --enable-demuxer="mpegts" --enable-demuxer="ogg" --enable-demuxer="rm" --enable-demuxer="rtsp" --enable-demuxer="rtp" --enable-demuxer="sdp" --enable-demuxer="wav" --enable-demuxer="wv" --enable-parser="aac" --enable-parser="aac_latm" --enable-parser="flac" --enable-parser="ac3" --enable-parser="mpegaudio" --enable-protocol="file" --enable-protocol="http" --enable-protocol="icecast" --enable-protocol="rtp" --enable-protocol="tcp" --enable-protocol="udp" --enable-libopus --enable-decoder=libopus --enable-libspeex --enable-decoder=libspeex --disable-decoder=pcm_bluray,pcm_dvd ) ERROR: opus not found using pkg-config If you think configure made a mistake, make sure you are using the latest version from Git. If the latest version fails, report the problem to the ffmpeg-user(a)ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net. Include the log file "config.log" produced by configure as this will help solve the problem. I have attached "config.log" file along with this mail. I have tried to recompile the package by enabling "opus" package in the kernel but still, I am facing the same issue. I have also tried to replace the existing "ffmpeg" package (ver. 2.6.2) with the latest version (ver. 3.2.4, downloaded from https://ffmpeg.org/download.html <https://ffmpeg.org/download.html> ), but this too doesn't solve the compilation issue. Can you please help in resolving this issue? Regards, Taruna

2 1

FFMpeg RTSP to .m3u8 conversion
by ankit.gupta 21 Mar '17

21 Mar '17

Using FFMpeg to convert RTSP to .m3u8 using below command ffmpeg -rtsp_transport tcp -i rtsp://root:kastle@192.168.17.153/axis-media/media.amp -r 100 -crf 25 -preset faster -maxrate 500k -bufsize 1500k -c:v libx264 -hls_time 4 -hls_list_size 2 -hls_wrap 2 -start_number 1 -rtsp_transport tcp -y Z:/playlist.m3u8 For one of the camera in same network this command works well. For another camera there is frequent error with message "cseq 10 expected 1 received" and also there is significant delay in RTSP to .m3u8 conversion. Below is the console output when it stopped: C:\Users\sunil\Downloads\ffmpeg-3.2.2-win64-static\ffmpeg-3.2.2-win64-static\bin ffmpeg -rtsp_transport tcp -i rtsp://root:kastle@192.168.17.153/axis-media/medi a.amp -r 100 -crf 25 -preset faster -maxrate 500k -bufsize 1500k -c:v libx264 -h ls_time 4 -hls_list_size 2 -hls_wrap 2 -start_number 1 -y Z:/playlist.m3u8 ffmpeg version 3.2.2 Copyright (c) 2000-2016 the FFmpeg developers built with gcc 5.4.0 (GCC) configuration: --enable-gpl --enable-version3 --enable-dxva2 --enable-libmfx - -enable-nvenc --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei 0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-li bbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --en able-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-li bopus --enable-librtmp --enable-libsnappy --enable-libsoxr --enable-libspeex --e nable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable -libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --e nable-lzma --enable-decklink --enable-zlib libavutil 55. 34.100 / 55. 34.100 libavcodec 57. 64.101 / 57. 64.101 libavformat 57. 56.100 / 57. 56.100 libavdevice 57. 1.100 / 57. 1.100 libavfilter 6. 65.100 / 6. 65.100 libswscale 4. 2.100 / 4. 2.100 libswresample 2. 3.100 / 2. 3.100 libpostproc 54. 1.100 / 54. 1.100 Input #0, rtsp, from 'rtsp://root:kastle@192.168.17.153/axis-media/media.amp': Metadata: title : Session streamed with GStreamer comment : rtsp-server Duration: N/A, start: 0.033378, bitrate: N/A Stream #0:0: Video: h264 (High), yuvj420p(pc, bt709, progressive), 1024x576 [SAR 1:1 DAR 16:9], 29.97 fps, 29.97 tbr, 90k tbn, 180k tbc No pixel format specified, yuvj420p for H.264 encoding chosen. Use -pix_fmt yuv420p for compatibility with outdated media players. [libx264 @ 00000000005ef660] using SAR=1/1 [libx264 @ 00000000005ef660] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 [libx264 @ 00000000005ef660] profile High, level 4.0 Output #0, hls, to 'Z:/playlist.m3u8': Metadata: title : Session streamed with GStreamer comment : rtsp-server encoder : Lavf57.56.100 Stream #0:0: Video: h264 (libx264), yuvj420p(pc), 1024x576 [SAR 1:1 DAR 16:9 ], q=-1--1, 100 fps, 90k tbn, 100 tbc Metadata: encoder : Lavc57.64.101 libx264 Side data: cpb: bitrate max/min/avg: 500000/0/0 buffer size: 1500000 vbv_delay: -1 Stream mapping: Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264)) Press [q] to stop, ? for help frame= 34 fps=0.0 q=35.0 size=N/A time=00:00:00.10 bitrate=N/A dup=22 drop=0 s frame= 58 fps= 57 q=35.0 size=N/A time=00:00:00.34 bitrate=N/A dup=39 drop=0 s frame= 78 fps= 51 q=35.0 size=N/A time=00:00:00.54 bitrate=N/A dup=53 drop=0 s frame= 101 fps= 49 q=35.0 size=N/A time=00:00:00.77 bitrate=N/A dup=69 drop=0 s frame= 121 fps= 47 q=35.0 size=N/A time=00:00:00.97 bitrate=N/A dup=83 drop=0 s frame= 148 fps= 47 q=35.0 size=N/A time=00:00:01.24 bitrate=N/A dup=102 drop=0 frame= 178 fps= 47 q=35.0 size=N/A time=00:00:01.54 bitrate=N/A dup=123 drop=0 frame= 201 fps= 46 q=35.0 size=N/A time=00:00:01.77 bitrate=N/A dup=139 drop=0 frame= 218 fps= 44 q=35.0 size=N/A time=00:00:01.94 bitrate=N/A dup=151 drop=0 frame= 241 fps= 44 q=35.0 size=N/A time=00:00:02.17 bitrate=N/A dup=167 drop=0 frame= 258 fps= 42 q=35.0 size=N/A time=00:00:02.34 bitrate=N/A dup=179 drop=0 frame= 275 fps= 41 q=35.0 size=N/A time=00:00:02.51 bitrate=N/A dup=191 drop=0 frame= 295 fps= 40 q=35.0 size=N/A time=00:00:02.71 bitrate=N/A dup=205 drop=0 frame= 315 fps= 40 q=35.0 size=N/A time=00:00:02.91 bitrate=N/A dup=219 drop=0 frame= 335 fps= 40 q=35.0 size=N/A time=00:00:03.11 bitrate=N/A dup=233 drop=0 frame= 355 fps= 40 q=35.0 size=N/A time=00:00:03.31 bitrate=N/A dup=247 drop=0 frame= 375 fps= 39 q=35.0 size=N/A time=00:00:03.51 bitrate=N/A dup=261 drop=0 frame= 388 fps= 38 q=35.0 size=N/A time=00:00:03.64 bitrate=N/A dup=270 drop=0 frame= 408 fps= 38 q=35.0 size=N/A time=00:00:03.84 bitrate=N/A dup=284 drop=0 frame= 432 fps= 38 q=35.0 size=N/A time=00:00:04.08 bitrate=N/A dup=301 drop=0 frame= 455 fps= 38 q=35.0 size=N/A time=00:00:04.31 bitrate=N/A dup=317 drop=0 frame= 478 fps= 38 q=35.0 size=N/A time=00:00:04.54 bitrate=N/A dup=333 drop=0 frame= 505 fps= 39 q=35.0 size=N/A time=00:00:04.81 bitrate=N/A dup=352 drop=0 frame= 525 fps= 38 q=35.0 size=N/A time=00:00:05.01 bitrate=N/A dup=366 drop=0 frame= 545 fps= 38 q=35.0 size=N/A time=00:00:05.21 bitrate=N/A dup=380 drop=0 frame= 568 fps= 38 q=35.0 size=N/A time=00:00:05.44 bitrate=N/A dup=396 drop=0 frame= 592 fps= 38 q=35.0 size=N/A time=00:00:05.68 bitrate=N/A dup=413 drop=0 frame= 615 fps= 39 q=35.0 size=N/A time=00:00:05.91 bitrate=N/A dup=429 drop=0 frame= 635 fps= 39 q=35.0 size=N/A time=00:00:06.11 bitrate=N/A dup=443 drop=0 frame= 658 fps= 39 q=35.0 size=N/A time=00:00:06.34 bitrate=N/A dup=459 drop=0 frame= 685 fps= 39 q=35.0 size=N/A time=00:00:06.61 bitrate=N/A dup=478 drop=0 frame= 869 fps= 40 q=35.0 size=N/A time=00:00:08.45 bitrate=N/A dup=658 drop=0 frame= 892 fps= 40 q=35.0 size=N/A time=00:00:08.68 bitrate=N/A dup=674 drop=0 frame= 919 fps= 40 q=35.0 size=N/A time=00:00:08.95 bitrate=N/A dup=693 drop=0 frame= 1386 fps= 59 q=35.0 size=N/A time=00:00:13.62 bitrate=N/A dup=1149 drop=0 frame= 1389 fps= 41 q=35.0 size=N/A time=00:00:13.65 bitrate=N/A dup=1151 drop=0 frame= 1426 fps= 42 q=35.0 size=N/A time=00:00:14.02 bitrate=N/A dup=1177 drop=0 frame= 1459 fps= 42 q=35.0 size=N/A time=00:00:14.35 bitrate=N/A dup=1200 drop=0 frame= 1823 fps= 43 q=35.0 size=N/A time=00:00:17.99 bitrate=N/A dup=1558 drop=0 frame= 1840 fps= 43 q=35.0 size=N/A time=00:00:18.16 bitrate=N/A dup=1570 drop=0 frame= 1863 fps= 43 q=35.0 size=N/A time=00:00:18.39 bitrate=N/A dup=1586 drop=0 frame= 1887 fps= 43 q=35.0 size=N/A time=00:00:18.63 bitrate=N/A dup=1603 drop=0 frame= 1907 fps= 43 q=35.0 size=N/A time=00:00:18.83 bitrate=N/A dup=1617 drop=0 frame= 1930 fps= 43 q=35.0 size=N/A time=00:00:19.06 bitrate=N/A dup=1633 drop=0 frame= 1953 fps= 43 q=35.0 size=N/A time=00:00:19.29 bitrate=N/A dup=1649 drop=0 frame= 1990 fps= 43 q=35.0 size=N/A time=00:00:19.66 bitrate=N/A dup=1675 drop=0 frame= 2431 fps= 43 q=35.0 size=N/A time=00:00:24.07 bitrate=N/A dup=2113 drop=0 frame= 2467 fps= 43 q=35.0 size=N/A time=00:00:24.43 bitrate=N/A dup=2138 drop=0 frame= 2504 fps= 44 q=35.0 size=N/A time=00:00:24.80 bitrate=N/A dup=2164 drop=0 frame= 3555 fps= 48 q=35.0 size=N/A time=00:00:35.31 bitrate=N/A dup=3210 drop=0 frame= 3559 fps= 45 q=35.0 size=N/A time=00:00:35.35 bitrate=N/A dup=3213 drop=0 frame= 3582 fps= 45 q=35.0 size=N/A time=00:00:35.58 bitrate=N/A dup=3229 drop=0 frame= 3612 fps= 45 q=35.0 size=N/A time=00:00:35.88 bitrate=N/A dup=3250 drop=0 frame= 3639 fps= 45 q=35.0 size=N/A time=00:00:36.15 bitrate=N/A dup=3269 drop=0 frame= 4687 fps= 46 q=35.0 size=N/A time=00:00:46.63 bitrate=N/A dup=4314 drop=0 frame= 4720 fps= 46 q=35.0 size=N/A time=00:00:46.96 bitrate=N/A dup=4337 drop=0 frame= 4757 fps= 46 q=35.0 size=N/A time=00:00:47.33 bitrate=N/A dup=4363 drop=0 frame= 5815 fps= 46 q=35.0 size=N/A time=00:00:57.91 bitrate=N/A dup=5415 drop=0 frame= 5851 fps= 46 q=35.0 size=N/A time=00:00:58.27 bitrate=N/A dup=5440 drop=0 frame= 5888 fps= 46 q=35.0 size=N/A time=00:00:58.64 bitrate=N/A dup=5466 drop=0 [rtsp @ 0000000000420480] CSeq 8 expected, 7 received. [rtsp @ 0000000000420480] CSeq 9 expected, 8 received. frame= 8067 fps= 51 q=35.0 size=N/A time=00:01:20.43 bitrate=N/A dup=7640 drop=0 frame= 8154 fps= 48 q=35.0 size=N/A time=00:01:21.30 bitrate=N/A dup=7726 drop=0 frame=10410 fps= 60 q=35.0 size=N/A time=00:01:43.86 bitrate=N/A dup=9981 drop=0 [rtsp @ 0000000000420480] CSeq 10 expected, 9 received. frame=12753 fps= 58 q=35.0 size=N/A time=00:02:07.29 bitrate=N/A dup=12323 drop= frame=15963 fps= 60 q=35.0 size=N/A time=00:02:39.39 bitrate=N/A dup=15532 drop= frame=15967 fps= 48 q=35.0 size=N/A time=00:02:39.43 bitrate=N/A dup=15535 drop= frame=16000 fps= 48 q=35.0 size=N/A time=00:02:39.76 bitrate=N/A dup=15558 drop= [h264 @ 0000000002b53b40] error while decoding MB 34 18, bytestream -3 [h264 @ 0000000002b53b40] concealing 1167 DC, 1167 AC, 1167 MV errors in I frame av_interleaved_write_frame(): Immediate exit requested Received > 3 system signals, hard exiting C:\Users\sunil\Downloads\ffmpeg-3.2.2-win64-static\ffmpeg-3.2.2-win64-static\bin ffmpeg -rtsp_transport tcp -i rtsp://root:kastle@192.168.17.153/axis-media/medi a.amp -r 100 -crf 25 -preset faster -maxrate 500k -bufsize 1500k -c:v libx264 -h ls_time 4 -hls_list_size 2 -hls_wrap 2 -start_number 1 -rtsp_transport tcp -y Z: /playlist.m3u8 ffmpeg version 3.2.2 Copyright (c) 2000-2016 the FFmpeg developers built with gcc 5.4.0 (GCC) configuration: --enable-gpl --enable-version3 --enable-dxva2 --enable-libmfx - -enable-nvenc --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei 0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-li bbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --en able-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-li bopus --enable-librtmp --enable-libsnappy --enable-libsoxr --enable-libspeex --e nable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable -libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --e nable-lzma --enable-decklink --enable-zlib libavutil 55. 34.100 / 55. 34.100 libavcodec 57. 64.101 / 57. 64.101 libavformat 57. 56.100 / 57. 56.100 libavdevice 57. 1.100 / 57. 1.100 libavfilter 6. 65.100 / 6. 65.100 libswscale 4. 2.100 / 4. 2.100 libswresample 2. 3.100 / 2. 3.100 libpostproc 54. 1.100 / 54. 1.100 Input #0, rtsp, from 'rtsp://root:kastle@192.168.17.153/axis-media/media.amp': Metadata: title : Session streamed with GStreamer comment : rtsp-server Duration: N/A, start: 0.033378, bitrate: N/A Stream #0:0: Video: h264 (High), yuvj420p(pc, bt709, progressive), 1024x576 [SAR 1:1 DAR 16:9], 29.97 fps, 29.97 tbr, 90k tbn, 180k tbc No pixel format specified, yuvj420p for H.264 encoding chosen. Use -pix_fmt yuv420p for compatibility with outdated media players. [libx264 @ 0000000002650540] using SAR=1/1 [libx264 @ 0000000002650540] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 [libx264 @ 0000000002650540] profile High, level 4.0 Output #0, hls, to 'Z:/playlist.m3u8': Metadata: title : Session streamed with GStreamer comment : rtsp-server encoder : Lavf57.56.100 Stream #0:0: Video: h264 (libx264), yuvj420p(pc), 1024x576 [SAR 1:1 DAR 16:9 ], q=-1--1, 100 fps, 90k tbn, 100 tbc Metadata: encoder : Lavc57.64.101 libx264 Side data: cpb: bitrate max/min/avg: 500000/0/0 buffer size: 1500000 vbv_delay: -1 Stream mapping: Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264)) Press [q] to stop, ? for help frame= 41 fps=0.0 q=35.0 size=N/A time=00:00:00.17 bitrate=N/A dup=27 drop=0 s frame= 58 fps= 57 q=35.0 size=N/A time=00:00:00.34 bitrate=N/A dup=39 drop=0 s frame= 81 fps= 51 q=35.0 size=N/A time=00:00:00.57 bitrate=N/A dup=55 drop=0 s frame= 101 fps= 46 q=35.0 size=N/A time=00:00:00.77 bitrate=N/A dup=69 drop=0 s frame= 121 fps= 44 q=35.0 size=N/A time=00:00:00.97 bitrate=N/A dup=83 drop=0 s frame= 138 fps= 43 q=35.0 size=N/A time=00:00:01.14 bitrate=N/A dup=95 drop=0 s frame= 168 fps= 45 q=35.0 size=N/A time=00:00:01.44 bitrate=N/A dup=116 drop=0 frame= 201 fps= 47 q=35.0 size=N/A time=00:00:01.77 bitrate=N/A dup=139 drop=0 frame= 238 fps= 50 q=35.0 size=N/A time=00:00:02.14 bitrate=N/A dup=165 drop=0 frame= 258 fps= 49 q=35.0 size=N/A time=00:00:02.34 bitrate=N/A dup=179 drop=0 frame= 278 fps= 46 q=35.0 size=N/A time=00:00:02.54 bitrate=N/A dup=193 drop=0 frame= 298 fps= 45 q=35.0 size=N/A time=00:00:02.74 bitrate=N/A dup=207 drop=0 frame= 315 fps= 44 q=35.0 size=N/A time=00:00:02.91 bitrate=N/A dup=219 drop=0 frame= 338 fps= 44 q=35.0 size=N/A time=00:00:03.14 bitrate=N/A dup=235 drop=0 frame= 435 fps= 41 q=35.0 size=N/A time=00:00:04.11 bitrate=N/A dup=328 drop=0 frame= 455 fps= 41 q=35.0 size=N/A time=00:00:04.31 bitrate=N/A dup=342 drop=0 frame= 475 fps= 41 q=35.0 size=N/A time=00:00:04.51 bitrate=N/A dup=356 drop=0 frame= 498 fps= 41 q=35.0 size=N/A time=00:00:04.74 bitrate=N/A dup=372 drop=0 frame= 518 fps= 41 q=35.0 size=N/A time=00:00:04.94 bitrate=N/A dup=386 drop=0 frame= 535 fps= 40 q=35.0 size=N/A time=00:00:05.11 bitrate=N/A dup=398 drop=0 frame= 572 fps= 41 q=35.0 size=N/A time=00:00:05.48 bitrate=N/A dup=424 drop=0 frame= 605 fps= 42 q=35.0 size=N/A time=00:00:05.81 bitrate=N/A dup=447 drop=0 frame= 642 fps= 43 q=35.0 size=N/A time=00:00:06.18 bitrate=N/A dup=473 drop=0 frame= 678 fps= 44 q=35.0 size=N/A time=00:00:06.54 bitrate=N/A dup=498 drop=0 frame= 865 fps= 51 q=35.0 size=N/A time=00:00:08.41 bitrate=N/A dup=679 drop=0 frame= 869 fps= 45 q=35.0 size=N/A time=00:00:08.45 bitrate=N/A dup=682 drop=0 frame= 889 fps= 45 q=35.0 size=N/A time=00:00:08.65 bitrate=N/A dup=696 drop=0 frame= 909 fps= 45 q=35.0 size=N/A time=00:00:08.85 bitrate=N/A dup=710 drop=0 frame= 929 fps= 44 q=35.0 size=N/A time=00:00:09.05 bitrate=N/A dup=724 drop=0 frame= 952 fps= 44 q=35.0 size=N/A time=00:00:09.28 bitrate=N/A dup=740 drop=0 frame= 1476 fps= 47 q=35.0 size=N/A time=00:00:14.52 bitrate=N/A dup=1262 drop=0 frame= 1496 fps= 47 q=35.0 size=N/A time=00:00:14.72 bitrate=N/A dup=1276 drop=0 frame= 1516 fps= 47 q=35.0 size=N/A time=00:00:14.92 bitrate=N/A dup=1290 drop=0 frame= 1536 fps= 46 q=35.0 size=N/A time=00:00:15.12 bitrate=N/A dup=1304 drop=0 frame= 1560 fps= 46 q=35.0 size=N/A time=00:00:15.36 bitrate=N/A dup=1321 drop=0 frame= 1583 fps= 46 q=35.0 size=N/A time=00:00:15.59 bitrate=N/A dup=1337 drop=0 frame= 1610 fps= 46 q=35.0 size=N/A time=00:00:15.86 bitrate=N/A dup=1356 drop=0 frame= 1633 fps= 46 q=35.0 size=N/A time=00:00:16.09 bitrate=N/A dup=1372 drop=0 frame= 1650 fps= 45 q=35.0 size=N/A time=00:00:16.26 bitrate=N/A dup=1384 drop=0 frame= 1673 fps= 45 q=35.0 size=N/A time=00:00:16.49 bitrate=N/A dup=1400 drop=0 frame= 1690 fps= 45 q=35.0 size=N/A time=00:00:16.66 bitrate=N/A dup=1412 drop=0 frame= 1713 fps= 45 q=35.0 size=N/A time=00:00:16.89 bitrate=N/A dup=1428 drop=0 frame= 1733 fps= 45 q=35.0 size=N/A time=00:00:17.09 bitrate=N/A dup=1442 drop=0 frame= 2170 fps= 41 q=35.0 size=N/A time=00:00:21.46 bitrate=N/A dup=1877 drop=0 frame= 2194 fps= 41 q=35.0 size=N/A time=00:00:21.70 bitrate=N/A dup=1894 drop=0 frame= 2224 fps= 41 q=35.0 size=N/A time=00:00:22.00 bitrate=N/A dup=1915 drop=0 frame= 3208 fps= 59 q=35.0 size=N/A time=00:00:31.84 bitrate=N/A dup=2889 drop=0 frame= 3555 fps= 47 q=35.0 size=N/A time=00:00:35.31 bitrate=N/A dup=3235 drop=0 frame= 3559 fps= 42 q=35.0 size=N/A time=00:00:35.35 bitrate=N/A dup=3238 drop=0 frame= 3579 fps= 42 q=35.0 size=N/A time=00:00:35.55 bitrate=N/A dup=3252 drop=0 frame= 3902 fps= 46 q=35.0 size=N/A time=00:00:38.78 bitrate=N/A dup=3567 drop=0 frame= 5464 fps= 58 q=35.0 size=N/A time=00:00:54.40 bitrate=N/A dup=5128 drop=0 frame= 5468 fps= 42 q=35.0 size=N/A time=00:00:54.44 bitrate=N/A dup=5131 drop=0 frame= 5491 fps= 42 q=35.0 size=N/A time=00:00:54.67 bitrate=N/A dup=5147 drop=0 frame= 5511 fps= 42 q=35.0 size=N/A time=00:00:54.87 bitrate=N/A dup=5161 drop=0 frame= 5534 fps= 42 q=35.0 size=N/A time=00:00:55.10 bitrate=N/A dup=5177 drop=0 [rtsp @ 00000000004d0560] CSeq 8 expected, 7 received. frame= 8588 fps= 49 q=35.0 size=N/A time=00:01:25.64 bitrate=N/A dup=8224 drop=0 frame=13187 fps= 65 q=35.0 size=N/A time=00:02:11.63 bitrate=N/A dup=12822 drop= frame=13360 fps= 44 q=35.0 size=N/A time=00:02:13.36 bitrate=N/A dup=12994 drop= frame=13364 fps= 43 q=35.0 size=N/A time=00:02:13.40 bitrate=N/A dup=12997 drop= frame=13387 fps= 43 q=35.0 size=N/A time=00:02:13.63 bitrate=N/A dup=13013 drop= frame=13407 fps= 43 q=35.0 size=N/A time=00:02:13.83 bitrate=N/A dup=13027 drop= frame=13430 fps= 43 q=35.0 size=N/A time=00:02:14.06 bitrate=N/A dup=13043 drop= [rtsp @ 00000000004d0560] CSeq 10 expected, 9 received. -- View this message in context: http://www.ffmpeg-archive.org/FFMpeg-RTSP-to-m3u8-conversion-tp4679427.html Sent from the FFmpeg-users mailing list archive at Nabble.com.

1 1

mpegts exceed 33-bit
by Shmulik Yoffe 20 Mar '17

20 Mar '17

Hello I'd like to as the group for help on a specific issue: I need to do in-place encoding of HLS chunks. I get the chunks, and re-encode it using the -copyts argument to save the original PTS of video and audio. Lately I came across strange behavior of my source stream - when it gets new the 33-bit limit, several chunks (about 1 minute) have invalid PTS. For example, a chunks can start at PTS=-5258492, which is actually, in binary 1111111111111111111111111111111111111111101011111100001100000100 If I would just truncate this value to 33-bit, I will get 8584676100 which is the correct PTS value. In that case ffmpeg reads the PTS as negative number, and just convert it wrongly when using -copyts. I tried using setpts and asetpts to manually set the PTS to the computed PTS (the 33-bit truncated value) value, but couldn't get it to work. I would like to ask if anyone known why this is happening, if these extra bits have any meaning or usage or if it's a problem with the encoder, and how can I make ffmpeg work with it. Thanks!

2 3

Current git head produces ERROR: libxavs not found on configure
by 桃源老師 20 Mar '17

20 Mar '17

Hello list member, I have pulled ffmpeg current git head. Then it produces ERROR: libxavs not found on configure. Here's last part of config.log: warning: You must include stdint.h or inttypes.h before xavs.h [-W#warnings] # warning You must include stdint.h or inttypes.h before xavs.h ^ /Volumes/ffmpeg_compile/include/xavs.h:223:3: error: unknown type name 'uint8_t' uint8_t cqm_4iy[16]; /* used only if i_cqm_preset == XAVS_CQM_CUSTOM */ ^ /Volumes/ffmpeg_compile/include/xavs.h:224:3: error: unknown type name 'uint8_t' uint8_t cqm_4ic[16]; ^ /Volumes/ffmpeg_compile/include/xavs.h:225:3: error: unknown type name 'uint8_t' uint8_t cqm_4py[16]; ^ /Volumes/ffmpeg_compile/include/xavs.h:226:3: error: unknown type name 'uint8_t' uint8_t cqm_4pc[16]; ^ /Volumes/ffmpeg_compile/include/xavs.h:227:3: error: unknown type name 'uint8_t' uint8_t cqm_8iy[64]; ^ /Volumes/ffmpeg_compile/include/xavs.h:228:3: error: unknown type name 'uint8_t' uint8_t cqm_8py[64]; ^ /Volumes/ffmpeg_compile/include/xavs.h:367:3: error: unknown type name 'uint8_t' uint8_t *plane[4]; ^ /Volumes/ffmpeg_compile/include/xavs.h:378:3: error: unknown type name 'int64_t' int64_t i_pts; ^ /Volumes/ffmpeg_compile/include/xavs.h:427:3: error: unknown type name 'uint8_t' uint8_t *p_payload; ^ 1 warning and 9 errors generated. ERROR: libxavs not found How can I fix it? // Miya aka. TougenRoushi

3 5

AAC packet too short
by Maxence Dolle 18 Mar '17

18 Mar '17

Hi, I'm struggling a lot with a rtsp input stream that I try to save as mpegts without reencoding. Using the exact same command, it sometimes run well, but often crashes right from the start. The only difference I see between a successful and a failed run are the two lines: [mpegts @ 0x4ddfa60] AAC packet too short av_interleaved_write_frame(): Invalid data found when processing input So I guess I'm getting malformed packets, do you have any idea of a workaround here? Does it have to do with pts? Thanks! ######## FAILED RUN /opt/ffmpeg/ffmpeg -analyzeduration 5000000 -probesize 5000000 -i 'rtsp://my-input' -map i:1001? -map i:1002? -map i:1003? -map i:1004? -map i:1005? -map i:1006? -map i:1007? -map i:1008? -map i:1009? -map i:1010? -map i:1011? -map i:1012? -map i:1013? -map i:1014? -map i:1015? -map i:1016? -map i:1017? -map i:1018? -map i:1019? -map i:1020? -codec:a copy -map 0:v -codec:v copy -to 00:00:30 -f mpegts -y out.ts ffmpeg version 3.2.4-static http://johnvansickle.com/ffmpeg/ Copyright (c) 2000-2017 the FFmpeg developers built with gcc 5.4.1 (Debian 5.4.1-5) 20170205 configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-5 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gray --enable-libass --enable-libfreetype --enable-libfribidi --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libzimg libavutil 55. 34.101 / 55. 34.101 libavcodec 57. 64.101 / 57. 64.101 libavformat 57. 56.101 / 57. 56.101 libavdevice 57. 1.100 / 57. 1.100 libavfilter 6. 65.100 / 6. 65.100 libswscale 4. 2.100 / 4. 2.100 libswresample 2. 3.100 / 2. 3.100 libpostproc 54. 1.100 / 54. 1.100 [aac @ 0x4cea6e0] Multiple frames in a packet. [aac @ 0x4cea6e0] Sample rate index in program config element does not match the sample rate index configured by the container. [aac @ 0x4cea6e0] decode_pce: Input buffer exhausted before END element found [aac @ 0x4ceea00] Sample rate index in program config element does not match the sample rate index configured by the container. [aac @ 0x4ceea00] decode_pce: Input buffer exhausted before END element found [aac @ 0x4cf1d60] Sample rate index in program config element does not match the sample rate index configured by the container. [aac @ 0x4cf1d60] decode_pce: Input buffer exhausted before END element found [NULL @ 0x4cb8a00] non-existing PPS 0 referenced [h264 @ 0x4cb8a00] non-existing PPS 0 referenced [h264 @ 0x4cb8a00] decode_slice_header error [h264 @ 0x4cb8a00] no frame! [h264 @ 0x4cb8a00] non-existing PPS 0 referenced Last message repeated 1 times [h264 @ 0x4cb8a00] decode_slice_header error [h264 @ 0x4cb8a00] no frame! [h264 @ 0x4cb8a00] non-existing PPS 0 referenced Last message repeated 1 times [h264 @ 0x4cb8a00] decode_slice_header error [h264 @ 0x4cb8a00] no frame! [h264 @ 0x4cb8a00] non-existing PPS 0 referenced Last message repeated 1 times [h264 @ 0x4cb8a00] decode_slice_header error [h264 @ 0x4cb8a00] no frame! [h264 @ 0x4cb8a00] non-existing PPS 0 referenced Last message repeated 1 times [h264 @ 0x4cb8a00] decode_slice_header error [h264 @ 0x4cb8a00] no frame! [h264 @ 0x4cb8a00] non-existing PPS 0 referenced Last message repeated 1 times [h264 @ 0x4cb8a00] decode_slice_header error [h264 @ 0x4cb8a00] no frame! Input #0, rtsp, from 'rtsp://my-input': Metadata: title : unknown comment : unknown Duration: N/A, start: 44609.301122, bitrate: N/A Program 56612 Stream #0:1: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(progressive), 480x576 [SAR 8:5 DAR 4:3], 25 fps, 25 tbr, 90k tbn, 50 tbc Stream #0:19(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, fltp, 31 kb/s Stream #0:0(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, fltp, 32 kb/s Stream #0:8(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, fltp, 32 kb/s Stream #0:4(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, fltp, 34 kb/s Stream #0:5(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, fltp, 33 kb/s Stream #0:14(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, fltp, 30 kb/s Stream #0:7(fra): Audio: aac (HE-AACv2) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 30 kb/s Stream #0:15(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, fltp, 34 kb/s Stream #0:10(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, fltp, 32 kb/s Stream #0:11: Audio: aac (HE-AACv2), 48000 Hz, stereo, fltp, 33 kb/s Stream #0:16: Audio: aac (HE-AACv2), 48000 Hz, stereo, fltp, 30 kb/s Stream #0:3: Audio: aac (HE-AACv2), 48000 Hz, stereo, fltp, 32 kb/s Stream #0:2(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, fltp, 35 kb/s Stream #0:13(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, fltp, 33 kb/s Stream #0:20(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, fltp, 32 kb/s Stream #0:18(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, fltp, 33 kb/s Stream #0:9(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, fltp, 35 kb/s Stream #0:6(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, fltp, 30 kb/s Stream #0:12(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, fltp, 32 kb/s Stream #0:17(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, fltp, 31 kb/s Output #0, mpegts, to 'out.ts': Metadata: title : unknown comment : unknown encoder : Lavf57.56.101 Stream #0:0(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, 31 kb/s Stream #0:1(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, 32 kb/s Stream #0:2(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, 32 kb/s Stream #0:3(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, 34 kb/s Stream #0:4(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, 33 kb/s Stream #0:5(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, 30 kb/s Stream #0:6(fra): Audio: aac (HE-AACv2) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, 30 kb/s Stream #0:7(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, 34 kb/s Stream #0:8(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, 32 kb/s Stream #0:9: Audio: aac (HE-AACv2), 48000 Hz, stereo, 33 kb/s Stream #0:10: Audio: aac (HE-AACv2), 48000 Hz, stereo, 30 kb/s Stream #0:11: Audio: aac (HE-AACv2), 48000 Hz, stereo, 32 kb/s Stream #0:12(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, 35 kb/s Stream #0:13(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, 33 kb/s Stream #0:14(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, 32 kb/s Stream #0:15(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, 33 kb/s Stream #0:16(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, 35 kb/s Stream #0:17(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, 30 kb/s Stream #0:18(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, 32 kb/s Stream #0:19(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, 31 kb/s Stream #0:20: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(progressive), 480x576 [SAR 8:5 DAR 4:3], q=2-31, 25 fps, 25 tbr, 90k tbn, 90k tbc Stream mapping: Stream #0:19 -> #0:0 (copy) Stream #0:0 -> #0:1 (copy) Stream #0:8 -> #0:2 (copy) Stream #0:4 -> #0:3 (copy) Stream #0:5 -> #0:4 (copy) Stream #0:14 -> #0:5 (copy) Stream #0:7 -> #0:6 (copy) Stream #0:15 -> #0:7 (copy) Stream #0:10 -> #0:8 (copy) Stream #0:11 -> #0:9 (copy) Stream #0:16 -> #0:10 (copy) Stream #0:3 -> #0:11 (copy) Stream #0:2 -> #0:12 (copy) Stream #0:13 -> #0:13 (copy) Stream #0:20 -> #0:14 (copy) Stream #0:18 -> #0:15 (copy) Stream #0:9 -> #0:16 (copy) Stream #0:6 -> #0:17 (copy) Stream #0:12 -> #0:18 (copy) Stream #0:17 -> #0:19 (copy) Stream #0:1 -> #0:20 (copy) Press [q] to stop, [?] for help [mpegts @ 0x4ddfa60] AAC bitstream not in ADTS format and extradata missing Last message repeated 15 times [mpegts @ 0x4ddfa60] AAC packet too short av_interleaved_write_frame(): Invalid data found when processing input [mpegts @ 0x4ddfa60] AAC bitstream not in ADTS format and extradata missing Last message repeated 1 times frame= 1 fps=0.0 q=-1.0 Lsize= 123kB time=00:00:01.06 bitrate= 948.6kbits/s speed= 588x video:68kB audio:44kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 9.687434% Conversion failed! ######## SUCCESSFUL RUN /opt/ffmpeg/ffmpeg -analyzeduration 5000000 -probesize 5000000 -i 'rtsp://my-input' -map i:1001? -map i:1002? -map i:1003? -map i:1004? -map i:1005? -map i:1006? -map i:1007? -map i:1008? -map i:1009? -map i:1010? -map i:1011? -map i:1012? -map i:1013? -map i:1014? -map i:1015? -map i:1016? -map i:1017? -map i:1018? -map i:1019? -map i:1020? -codec:a copy -map 0:v -codec:v copy -to 00:00:30 -f mpegts -y out.ts ffmpeg version 3.2.4-static http://johnvansickle.com/ffmpeg/ Copyright (c) 2000-2017 the FFmpeg developers built with gcc 5.4.1 (Debian 5.4.1-5) 20170205 configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-5 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gray --enable-libass --enable-libfreetype --enable-libfribidi --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libzimg libavutil 55. 34.101 / 55. 34.101 libavcodec 57. 64.101 / 57. 64.101 libavformat 57. 56.101 / 57. 56.101 libavdevice 57. 1.100 / 57. 1.100 libavfilter 6. 65.100 / 6. 65.100 libswscale 4. 2.100 / 4. 2.100 libswresample 2. 3.100 / 2. 3.100 libpostproc 54. 1.100 / 54. 1.100 [aac @ 0x42d6e60] Multiple frames in a packet. [aac @ 0x42d9720] Multiple frames in a packet. [aac @ 0x42d9720] Sample rate index in program config element does not match the sample rate index configured by the container. [aac @ 0x42d9720] decode_pce: Input buffer exhausted before END element found [aac @ 0x42ea100] Sample rate index in program config element does not match the sample rate index configured by the container. [aac @ 0x42ea100] decode_pce: Input buffer exhausted before END element found [aac @ 0x42ec9c0] Multiple frames in a packet. [aac @ 0x42eb560] Multiple frames in a packet. [NULL @ 0x42ee180] non-existing PPS 0 referenced [h264 @ 0x42ee180] non-existing PPS 0 referenced [h264 @ 0x42ee180] decode_slice_header error [h264 @ 0x42ee180] no frame! [h264 @ 0x42ee180] non-existing PPS 0 referenced Last message repeated 1 times [h264 @ 0x42ee180] decode_slice_header error [h264 @ 0x42ee180] no frame! [h264 @ 0x42ee180] non-existing PPS 0 referenced Last message repeated 1 times [h264 @ 0x42ee180] decode_slice_header error [h264 @ 0x42ee180] no frame! [h264 @ 0x42ee180] non-existing PPS 0 referenced Last message repeated 1 times [h264 @ 0x42ee180] decode_slice_header error [h264 @ 0x42ee180] no frame! [h264 @ 0x42ee180] non-existing PPS 0 referenced Last message repeated 1 times [h264 @ 0x42ee180] decode_slice_header error [h264 @ 0x42ee180] no frame! Input #0, rtsp, from 'rtsp://my-input': Metadata: title : unknown comment : unknown Duration: N/A, start: 44610.338300, bitrate: N/A Program 56612 Stream #0:20: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(progressive), 480x576 [SAR 8:5 DAR 4:3], 25 fps, 25 tbr, 90k tbn, 50 tbc Stream #0:18(fra): Audio: aac (HE-AACv2) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 32 kb/s Stream #0:0(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, fltp, 32 kb/s Stream #0:7(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, fltp, 32 kb/s Stream #0:4(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, fltp, 28 kb/s Stream #0:6(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, fltp, 30 kb/s Stream #0:13(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, fltp, 30 kb/s Stream #0:5(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, fltp, 32 kb/s Stream #0:14(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, fltp, 32 kb/s Stream #0:9(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, fltp, 32 kb/s Stream #0:10: Audio: aac (HE-AACv2), 48000 Hz, stereo, fltp, 29 kb/s Stream #0:16: Audio: aac (HE-AACv2), 48000 Hz, stereo, fltp, 32 kb/s Stream #0:2: Audio: aac (HE-AACv2), 48000 Hz, stereo, fltp, 33 kb/s Stream #0:1(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, fltp, 30 kb/s Stream #0:12(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, fltp, 31 kb/s Stream #0:19(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, fltp, 34 kb/s Stream #0:15(fra): Audio: aac (HE-AACv2) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 32 kb/s Stream #0:8(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, fltp, 32 kb/s Stream #0:3(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, fltp, 29 kb/s Stream #0:11(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, fltp, 32 kb/s Stream #0:17(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, fltp, 32 kb/s Output #0, mpegts, to 'out.ts': Metadata: title : unknown comment : unknown encoder : Lavf57.56.101 Stream #0:0(fra): Audio: aac (HE-AACv2) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, 32 kb/s Stream #0:1(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, 32 kb/s Stream #0:2(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, 32 kb/s Stream #0:3(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, 28 kb/s Stream #0:4(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, 30 kb/s Stream #0:5(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, 30 kb/s Stream #0:6(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, 32 kb/s Stream #0:7(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, 32 kb/s Stream #0:8(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, 32 kb/s Stream #0:9: Audio: aac (HE-AACv2), 48000 Hz, stereo, 29 kb/s Stream #0:10: Audio: aac (HE-AACv2), 48000 Hz, stereo, 32 kb/s Stream #0:11: Audio: aac (HE-AACv2), 48000 Hz, stereo, 33 kb/s Stream #0:12(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, 30 kb/s Stream #0:13(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, 31 kb/s Stream #0:14(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, 34 kb/s Stream #0:15(fra): Audio: aac (HE-AACv2) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, 32 kb/s Stream #0:16(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, 32 kb/s Stream #0:17(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, 29 kb/s Stream #0:18(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, 32 kb/s Stream #0:19(fra): Audio: aac (HE-AACv2), 48000 Hz, stereo, 32 kb/s Stream #0:20: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(progressive), 480x576 [SAR 8:5 DAR 4:3], q=2-31, 25 fps, 25 tbr, 90k tbn, 90k tbc Stream mapping: Stream #0:18 -> #0:0 (copy) Stream #0:0 -> #0:1 (copy) Stream #0:7 -> #0:2 (copy) Stream #0:4 -> #0:3 (copy) Stream #0:6 -> #0:4 (copy) Stream #0:13 -> #0:5 (copy) Stream #0:5 -> #0:6 (copy) Stream #0:14 -> #0:7 (copy) Stream #0:9 -> #0:8 (copy) Stream #0:10 -> #0:9 (copy) Stream #0:16 -> #0:10 (copy) Stream #0:2 -> #0:11 (copy) Stream #0:1 -> #0:12 (copy) Stream #0:12 -> #0:13 (copy) Stream #0:19 -> #0:14 (copy) Stream #0:15 -> #0:15 (copy) Stream #0:8 -> #0:16 (copy) Stream #0:3 -> #0:17 (copy) Stream #0:11 -> #0:18 (copy) Stream #0:17 -> #0:19 (copy) Stream #0:20 -> #0:20 (copy) Press [q] to stop, [?] for help [mpegts @ 0x44a8d20] AAC bitstream not in ADTS format and extradata missing Last message repeated 22 times [mpegts @ 0x44a8d20] Non-monotonous DTS in output stream 0:4; previous: 1402160, current: 1402155; changing to 1402161. This may result in incorrect timestamps in the output file. [mpegts @ 0x44a8d20] Non-monotonous DTS in output stream 0:3; previous: 1520926, current: 1520923; changing to 1520927. This may result in incorrect timestamps in the output file. [mpegts @ 0x44a8d20] Non-monotonous DTS in output stream 0:8; previous: 1790744, current: 1790742; changing to 1790745. This may result in incorrect timestamps in the output file. [mpegts @ 0x44a8d20] Non-monotonous DTS in output stream 0:4; previous: 2600222, current: 2600213; changing to 2600223. This may result in incorrect timestamps in the output file. frame= 725 fps= 25 q=-1.0 Lsize= 10221kB time=00:00:29.99 bitrate=2791.1kbits/s speed=1.03x video:6659kB audio:2626kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 10.079859%

2 2

Conversion of 24 to 25 without change in duration
by Hardik Kanakia 17 Mar '17

17 Mar '17

Hi All, I am currently facing a problem for while converting the content from 24 to 25 without change in duration. When i tried converting the content, the duration changes which is not what is required Can you please help with the code Regards, Hardik Kanakia

2 1